上海航欧销售ELKO传感器ELKO电流变送器ELKO电流传感器ELKO电流互感器ELKO电源ELKO缓冲块ELKO缓冲器ELKO计时器ELKO继电器ELKO时间继电器ELKO温度传感器ELKO橡胶垫ELKO橡胶块ELKO开关

上海航欧机电设备有限公司从事进口机电设备、仪器仪表等备品备件的销售，是经营各地进口设备的企业。上海航欧公司与众多品牌电子元件供应商建立有良好的合作关系，在欧美、日本等地形成了稳定的供应网络，良好的供应商关系和多年的行业经验，使我们在价格及货期上有优势。经销产品供应的行业涉及冶金、钢铁、石化、能源、航天、集装箱码头、汽车、水利、造纸、电厂、纺织、注塑、橡胶、食品包装等。我们热忱地希望尽我们的努力，力争优惠的产品价格，供货周期以及服务质量，能够为您解决进口备件方面的问题。进口产品主要有：传感器，测速电机，接近开关，电子尺，编码器，控制器、分析仪，光纤，光栅，插装阀，电缆，拖链，分配器，马达，减速机，继电器、缓冲器和进口五金等

上海航欧销售ELKO传感器ELKO电流变送器ELKO电流传感器ELKO电流互感器ELKO电源ELKO缓冲块ELKO缓冲器ELKO计时器ELKO继电器ELKO时间继电器ELKO温度传感器ELKO橡胶垫ELKO橡胶块ELKO开关

315GLE

400GLI

C104

CRM-2H

CRM-91H/UNI

CRM-81J  AC24V

CRM-83J AC220V

EP-601

GP-AZ-030X020-M 8X12-NR55

GP-AZ-050*20-M10*28-NR57

GP-DK-035x040-M8x23-NR57

GP-DP-020x024-M6x15-CR70

GP-EP050x50-M10-NR70  D= 50 x 50 mm

GP-EZ-025x020-M8-NR57

GP-QP-100x080-S

GP50X21, TYP D / SHORE A 57 ±5

HRH-5 AC220V

HRN-54

PDR2

PRI-32 AC24-240V/24VDC

PRI-51 2A  24v

PS-24

RS 16/300GL

S910-29848

S951-17195

SJR-2 AC220V

SM40X30

SMB SM55, 31700

TV111

ZP-QP-250x375-STPL

上海航欧销售ELKO传感器ELKO电流变送器ELKO电流传感器ELKO电流互感器ELKO电源ELKO缓冲块ELKO缓冲器ELKO计时器ELKO继电器ELKO时间继电器ELKO温度传感器ELKO橡胶垫ELKO橡胶块ELKO开关上海航欧机电设备有限公司成立于2006年，业从事进口机电设备、仪器仪表等备品备件的销售，是经营各地进口设备机电配件的企业。上海航欧公司与众多品牌电子元件供应商建立有良好的合作关系，在欧美、日本等地形成了稳定的供应网络，良好的供应商关系和多年的行业经验，使我们在价格及货期上有优势。经销产品供应的行业涉及冶金、钢铁、石化、能源、航天、集装箱码头、汽车、水利、造纸、电厂、纺织、注塑、橡胶、食品包装等。我们热忱地希望尽我们的努力，力争优惠的产品价格，供货周期以及服务质量，能够为您解决进口备件方面的问题。进口产品主要有：传感器，测速电机，接近开关，电子尺，编码器，控制器、分析仪，光纤，光栅，插装阀，电缆，拖链，分配器，马达，减速机，继电器、缓冲器和进口五金等

产品型号         4C590B             5NRC4　 DAYTON

产品型号         SUINT1000RTXL2Ua                           Tripp Lite

产品型号         SMC 424-1                 A14195-20        ITW

产品型号         B2085       BG30-11/D08LA4-TB                Danfoss Bauer

产品型号         CSG-4232-NB3-HC-A240 220V AC                             VERSA

产品型号         VSP-4602-55F                     VERSA

产品型号         301992                       INTERNORMEN

产品型号         R14DXXA10 转速2400rpm 功率1.7KW                        GLOBE

产品型号         VB7-03-10A                       KONAN

产品型号         NO.21                        Mcdonnell&Miller

产品型号         PL231 100 5K                      ELAP

产品型号         EKM1500                   AIRFLOW

产品型号         MTN/1100SM8                           Monitran

产品型号         LBO-250 341466 EVALUATION                            TransducerTechniques

产品型号         #SSI 347858 EVALUATION                           TransducerTechniques

产品型号         QMC-0.1-30-P3-E 69.86mmx762mm                         FIL-TREK

产品型号         RC135/32 65FB3 10kw                       ELETTROMECCANICA

产品型号         2199.10                      FIBRO

产品型号         PDA500-12                         

产品型号         519 M 285KA   U05190944                USAG

产品型号         TCDEI-8D0P-DYU-G02                        WOODHEAD

产品型号         CNM16              CNEM16T         ILME

产品型号         519 M 285A1   U05190921                USAG

产品型号         MV1214G                            RIEGLER

产品型号         用于 50AKS-23MB配件                            ASANO

产品型号         Y124VDC-2                         STASTO

产品型号         519 M 613CEA          U05190942                USAG

产品型号         114030K12M060                        WOODHEAD

产品型号         415.01.38                            Dopag

产品型号         61211                          VON-RUDEN

产品型号         LMF/1/40236/520                      weald electronics

产品型号         m16                          FAE

产品型号         586238-03                           LEINE&LINDE

产品型号         A10727-00                          ITW

产品型号         83668                        LINCOLN

产品型号         UDS105 KUEC/ZR                       WAIRCOM

产品型号         GH64100-B                         ZIMMER

产品型号         GP45S-B                     SOMMER

产品型号         GK20N-B                    SOMMER

产品型号         UDS105 SUEC/SUEC                            WAIRCOM

产品型号         BV3H-0750-BA-1111                           DMIC

产品型号         BVH-0750B-1111AZZA                       DMIC

产品型号         2TLA019995R2600                     JOKAB SAFETY

产品型号         2199.40             2199.40.1         FIBRO

产品型号         FL 10/9     2017094            BLOCK

产品型号         519 M 613AEA          U05190940                USAG

产品型号         141045                       NORDSON

产品型号         41089-4WP                         Leviton

产品型号         A10729-00                          ITW

产品型号         S08-3FVG-050                    DI-SORIC

产品型号         CG4 RC3623-600FS2+F741+G222                      K&N

产品型号         519 M 285A2   U05190943                USAG

产品型号         519 M 150AX   U05190965                USAG

产品型号         519/150AX       U05190850                USAG

产品型号         990 B2/SE5       U09900404                USAG

产品型号         SDI-550                       WESTERMO

产品型号         用于编码器GHU9-20-5G29-05000-G6R-U0                     BEI

产品型号         00320063（STD 018-70）                         E+L

产品型号         AG-PO-5-D1-40-E4-EP 63.5mm x 1016mm                       FIL-TREK

产品型号         ASBS6 LED-5/4                            LUMBERG

产品型号         519 R7/3V        U05190415                USAG

产品型号         519 M 280HATS        U05190946/U05190861  89TXA(FACOM)         USAG

产品型号         519 M 280HATX       U05190947/U05190862  84TZSA(FACOM)       USAG

产品型号         519 M 382F      U05190926                USAG

产品型号         519 M 324STX U05190923                USAG

产品型号         80/SG/BU                           WAIRCOM

产品型号         E82EV551K4C                    LENZE

产品型号         E82EV751-K2C                            LENZE

产品型号         Z08362=C=4000                         POLYMETRON

产品型号         252715                       LINCOLN

产品型号         519 M 324H     U05190922                USAG

产品型号         TCDEI-888P-DYU-G02                        WOODHEAD

产品型号         8芯信号电缆                    ASM

产品型号         519/092H         U05190771                USAG

产品型号         234 1/2" N/C9 U02342512                USAG

产品型号         233 1/2" NTX/C9      U02332556                USAG

产品型号         1734-IV8                    AB

产品型号         1734-OV8E                          AB

产品型号         817-E2                        AB

产品型号         871D-BW2N524-N3                              AB

产品型号         800R-3HZ4R                       AB

产品型号         800TXAP                     AB

产品型号         7004590P0106                            ABB

产品型号         7004590P0116                            ABB

产品型号         整流桥                       ABB

产品型号         GCE9478103P0106 Y1                        ABB

产品型号         VC2555-F                   ACE

产品型号         4683-TTM-2F                      ACROMAG

产品型号         15038PB-B3L-EP-00                            NMB

产品型号         D-ADAPT-SBB2X25  140334              DEUTRONIC

产品型号         MTN/EUCX15-10                        Monitran

产品型号         PR-7020-2B2B-WO/S                          Air Logic

产品型号         FA 080-4-6-00-1-0-0 0.75kw 230/400V 50hz   A1407350                  FLOWFORCE

产品型号         1302133001                       AIRCOMP

产品型号         M-04-510-HN                     AIRTEC

产品型号         168P0200BA1NB                        ALPHA

产品型号         A96MMA,Size:96*96mm,Acc1.0 Range:+/-3250MW , Input:+/-12.5mA , （VT:500kV/√3/110V/√3;CT:3000/1A）                         FRER

产品型号         ELP260596                          ANSALDO

产品型号         JD-2R/801111303                      ANTUNES

产品型号         1063AB0100G2571                    ARMIT

产品型号         438F-115-1.5                      ARTISAN

产品型号         1133A                         ARbiter

产品型号         AP-101-22-4                        ASAHI KEIKI

产品型号         FPSH 15 NBR-FDA/SS                          ASCO

产品型号         TLZ12HRRB16S                          ASCON

产品型号         CONN-DIN-8F-W                         ASM

产品型号         ASA01A18-L                        ASTEC

产品型号         3700-20-4158                     ATI

产品型号         3700-20-4153                     ATI

产品型号         3700-20-1544                     ATI

产品型号         0821305007                       AVENTICS

产品型号         0241                            rinstrum

产品型号         BDP506J400AC                           Aid

产品型号         F960-5-B85                         Air Logic

产品型号         A96MMA,Size:96*96mm,Acc1.0，Range:+/-3250MVAR ，Input:+/-12.5mA                        FRER

产品型号         BES 516-300-S265-S4-D   BHS0033           BALLUFF

产品型号         BNS819-99-R-10                         BALLUFF

产品型号         BCC M314-M414-3E-304-PX0434-030    BCC03JY           BALLUFF

产品型号         550-0500 Red                     DELTRON

产品型号         550-0100 Black                           DELTRON

产品型号         MQDC-430RA                    BANNER

产品型号         PRX-SO                          PRS-QP    BARRINGTON

产品型号         EGT016.1                            TUNKERS

产品型号         EGT017.1                            TUNKERS

产品型号         ACB18/4709 S BI                        BDC

产品型号         602.1385.634                     BERNSTEIN

产品型号         260.0444.076                     BERNSTEIN

产品型号         269.0000.005                     BERNSTEIN

产品型号         269.6899.015                     BERNSTEIN

产品型号         602.1135.102                     BERNSTEIN

产品型号         6118169093                       BERNSTEIN

产品型号         MB-DLE 407 B01 S20       226561              DUNGS

产品型号         WVH-4B-2/2-WS-24-V-B*00                       BIERI

产品型号         WVH-4B-3/2-L-24-V-B*00                           BIERI

产品型号         878B                            BK Precision

产品型号         JPM407A-R4                       Black box

产品型号         DNC 24-10                          BLOCK

产品型号         PC 0624-400-0                   BLOCK

产品型号         C413PP112 2E17011261                    BONFIGLIOLI

产品型号         4942/1                        BRAGA

产品型号         R60060-3CR                       BUSSMANN

产品型号         170M6415                          BUSSMANN

产品型号         170M4414                          BUSSMANN

产品型号         31645.68 Diam(mm)6.5-Diam R:M10X100                        Vulcanic

产品型号         B94MAXXXXXB                            FRER

产品型号         EVNPS05-0005-MM                            Black box

产品型号         USB01-0015                        Black box

产品型号         EVNDVI01-0010                          Black box

产品型号         EVNSL82-0030                               Black box

产品型号         ICD101A                     Black box

产品型号         4898ANNNS                      FAIRCHILD

产品型号         C544         84839081                   KENDRION

产品型号         M752040S11ES100Z82                     Brusatori

产品型号         00002198                   00001130         Burkert

产品型号         00418762                            Burkert

产品型号         140064                       DEUTRONIC

产品型号         YP1K/15C                           CAMOZZI

产品型号         YP1K/15MC                        CAMOZZI

产品型号         FA201D                      FUMEX

产品型号         CLM-1-JFL                           CARRLANE

产品型号         CL-6-LHRP                           CARRLANE

产品型号         CF6  25CF6                FPZ

产品型号         6A52QD                      ZERO-MAX

产品型号         M-138                        CENTURY SPRING

产品型号         5857                         CENTURY SPRING

产品型号         72121                          CENTURY SPRING

产品型号         CIF50-DPS                          HILSCHER

 上海航欧机电设备有限公司成立于2006年，从事进口机电设备、仪器仪表等备品备件的销售，是经营各地进口设备机电配件的企业。上海航欧公司与众多品牌电子元件供应商建立有良好的合作关系，在欧美、日本等地形成了稳定的供应网络，良好的供应商关系和多年的行业经验，使我们在价格及货期上有优势。经销产品供应的行业涉及冶金、钢铁、石化、能源、航天、集装箱码头、汽车、水利、造纸、电厂、纺织、注塑、橡胶、食品包装等。我们热忱地希望尽我们的努力，力争优惠的产品价格，供货周期以及服务质量，能够为您解决进口备件方面的问题。进口产品主要有：传感器，测速电机，接近开关，电子尺，编码器，控制器、分析仪，光纤，光栅，插装阀，电缆，拖链，分配器，马达，减速机，继电器、缓冲器和进口五金等

产品型号         H20DB-25-SS-500-ABZ-3904R-SCS18-12V-S    01039-1392               BEI

产品型号         RE45BA1D5                        TOSOKU

产品型号         R3221R0.31/12 维修                        HOHNER

产品型号         515463-09                           LEINE&LINDE

产品型号         5000M/30L/5-LD/10-27FC                          GAEBRIDGE

产品型号         CMH58M-00005                         TR

产品型号         E6-400-472-IE-S-H-D-B                       US DIGITAL

产品型号         AWI40X-008-120 维修                      HOHNER

产品型号         HIS10  510-321618 维修                         HOHNER

产品型号         E2-900-157-IE-D-D-3                           US DIGITAL

产品型号         CEW58M-00212                         TR

产品型号         PR4621H/1024                         HOHNER

产品型号         H20DB-37-SS-600-ABC-28V/5-SCS48-S    01039-2263               BEI

产品型号         HSD44T1024A3K-01                            NORTHSTAR

产品型号         ED58-6-500000-05-D-SC12                         INDUCODER

产品型号         E5-2000-394-IE-D-D-G-B                    US DIGITAL

产品型号         E5-900-197-IE-S-D-D-B                       US DIGITAL

产品型号         HS352048844B7              HS35R204884P7      DYNAPAR

产品型号         E2-400-188-NE-D-3-B                         US DIGITAL

产品型号         IS900.1207R63.02000.SFK1                       W+S Mebsysteme

产品型号         EL63G250Z5/28P10X3PR                   ER63G250Z5/28P10XR    ELTRA

产品型号         E5-2048-250-NE-S-H-D-B                   E5-2048-250-IE-S-H-D-B  US DIGITAL

产品型号         E2-2048-250-NE-H-D-B             E2-2048-250-IE-H-D-B     US DIGITAL

产品型号         COV58S-00004                            TR

产品型号         COV58S-00003                            TR

产品型号         XE65S 6500-00016                     TR

产品型号         EC100RP30-H4DR-512 24VDC                        ELCO

产品型号         AWI58S-062A051-630                         HOHNER

产品型号         E2-200-250                E2-200-250-NE-D-D-B      US DIGITAL

产品型号         E2-1000-187-2          E2-1000-188-NE-D-3-B    US DIGITAL

产品型号         E2-500-375-NE-E-G-1                          US DIGITAL

产品型号         H16290/1000                     HOHNER

产品型号         ET58H12R-LR-1024 40GT00                       ELCO

产品型号         8.5825.3311.36000                   KUBLER

产品型号         CMH58M-00017                         TR

产品型号         CMW58M-00068                        TR

产品型号         QEH80M-00016                          TR

产品型号         CES58M-00214                           TR

产品型号         STD-F6A-10T    100301081                POSTECH

产品型号         2442KM1G5K150              GEL2443 KM1G5K150-E  LENORD+BAUER

产品型号         CEV65S-00134                   TR

产品型号         HWA103S-1513R005B0-2048                    HOHNER

产品型号         GEL2444 TZ1G5K150                          LENORD+BAUER

产品型号         E5-100-197-IE-S-H-T-3                        US DIGITAL

产品型号         E5-360-197-IE-S-H-T-3                        US DIGITAL

产品型号         E5-512-197-IE-S-H-T-3                        US DIGITAL

产品型号         E5-1024-197-IE-S-H-T-3                      US DIGITAL

产品型号         CEV65S-10122                   TR

产品型号         E5-720-197-NE-S-D-D-B                     US DIGITAL

产品型号         HA52515000260                         DYNAPAR

产品型号         3CK1-022A-0512                         HOHNER

产品型号         CEV58M-00442                 CEV582M-10442    TR

产品型号         HIS10 752-986356                   HOHNER

产品型号         28-282BR.39/1000                     HOHNER

产品型号         PD500060X21k                            ELAP

产品型号         GHU9-20-5G29-05000-G6R-U0                          BEI

产品型号         0522070                     HENGSTLER

产品型号         671.359.01                         KUHNKE

产品型号         ROD 436 1024 376 836-20                Heidenhain

产品型号         M050925 62-CADF-0012-AB             DYNAPAR

产品型号         AWI58S-103R081-1000                      HOHNER

产品型号         AWI58S-103R081-628                         HOHNER

产品型号         AWI58X-048-16/400/1                        HOHNER

产品型号         AWI58S-103R081-220                         HOHNER

产品型号         ISA 608     881801-01                 LEINE&LINDE

产品型号         E5-1250-250-IE-D-H-D-1                    US DIGITAL

产品型号         SEK52                          Brusatori

产品型号         CEV65M-02769                           TR

产品型号         OCD-EE-00-B-1416-B15SPRM                    POSITAL

产品型号         E2-256-125-IE-D-D-B                          US DIGITAL

产品型号         HWI80X-015-1024                      HOHNER

产品型号         A12500122BOOJ                        DYNAPAR

产品型号         E4T-500-236-D-H-M-B                        US DIGITAL

产品型号         AWI 90S-122/R008-0030                    HOHNER

产品型号         GHT514-0090S003                     BEI

产品型号         865067394-2048                        LEINE&LINDE

产品型号         IDH130-00001                   TR

产品型号         E3-2500-157-IE-D-D-3                        US DIGITAL

产品型号         8.5020.0A50.1024.S076                    KUBLER

产品型号         AWI90E-122A051-108                        HOHNER

产品型号         DFS60B-TEEK01024                   SICK

产品型号         2210001240                       DYNAPAR

产品型号         GEL2443KN1G3A050ME          GEL2444KN1G3N050M   LENORD+BAUER

产品型号         CEV58M-00441                 CEV582M-10441      TR

产品型号         HS35R2048P578 差动输出                       DYNAPAR

产品型号         H1-1024-NE-D                    US DIGITAL

产品型号         AWI90S-122A051-100(附连接头)                      HOHNER

产品型号         821113-02                        LEINE&LINDE

产品型号         27-27306.14/500                        HOHNER

产品型号         DH0514-1024-019                            BEI IDEACOD

产品型号         SPRF-001                    HOHNER

产品型号         8.5020 C35E.0500C                           KUEBLER

产品型号         S4-300-250-N-S-B              S4T-300-250-S-B       US DIGITAL

产品型号         CEV65S-00032                   TR

产品型号         DFS60B-S4PA10000         1036720            SICK

产品型号         HP1111R/5/3                     HOHNER

产品型号         0G72DN1204R         2021255            HUBNER

产品型号         24-241B1/900                            HOHNER

产品型号         HE65S 206-00418              HEV65S-00418          TR

产品型号         AWA58D-P/0013EK42TIDB                BC58-0013EK42DPZ         HOHNER

产品型号         RCM58D-00302-1024                         CHICODE

产品型号         SP14-012 180511-6          HOHNER

产品型号         PL01510/1024                    HOHNER

产品型号         01079-086        H25D-F62-SS-10GC-28V/V-CW-SM14/19-S               BEI

产品型号         CHM506-12BTS001                   BEI

产品型号         H25D-SB-2500-ABZC-28V/5-SM18-S        01002-6732               BEI

产品型号         28.28KW7.98/1000                    HOHNER

产品型号         PR 41P3W 70-4096                    HOHNER

产品型号         PR 41P3W 69-1024                    HOHNER

产品型号         2RMHF-5000-D-04-14-64-02-B-S5                     SCANCON

产品型号         RI41-H/1024AE.12RB-S11                          HENGSTLER

产品型号         E5-32-375-NE-S-H-G-B                        US DIGITAL

产品型号         BC58-0013EK42DPI                   HOHNER

产品型号         UN2000C4                          MUTOH

产品型号         EL40A360Z5/28P6X3PP2                  EL40A360Z5/28C6XR2.915      ELTRA

产品型号         CEV58S-00218                   TR

产品型号         30-30005-20                       HOHNER

产品型号         28-281B0/500                    HOHNER

产品型号         CMV58M-00005                         TR

产品型号         0532496                     HENGSTLER

产品型号         HC62540960241                         DYNAPAR

产品型号         CEV58M-00429                 CEV582M-10429      TR

产品型号         E2-400-250-NE-E-G-B                         US DIGITAL

产品型号         RHI58N-OBAK1R61N-04096                      P+F

产品型号         AVM58N-011K1R0GN-1213                       P+F

产品型号         HS35102485347                HS35R10248547      DYNAPAR

产品型号         E2-400-250-NE-D-G-B                         US DIGITAL

产品型号         E2-400-197-IE-D-D-B                          US DIGITAL

产品型号         E2-400-394-NE-H-D-B                         US DIGITAL

产品型号         E2-1000-250-IE-D-D-B                        US DIGITAL

产品型号         GHU925-1024-005  200501058932                   BEI

产品型号         FPX30369R/S/1024                    HOHNER

产品型号         CEV65M-211227                        TR

产品型号         PVM58N-011AGROBN-1213                      P+F

产品型号         GEL2443 KM1G5K150-E           GEL2444 KM1G5K150      LENORD+BAUER

产品型号         R150-O/1000ES,12KA            1023583            HENGSTLER

产品型号         OCEAN-LTSLZJ-2000M                        SCHAEVITZ

产品型号         S4T-360-236-S-B                         US DIGITAL

产品型号         HS35R0120755D                        DYNAPAR

产品型号         WDS-90A1/02A.I04                    HOHNER

产品型号         8.5850.2145.G122            8.5852.2135.G121  KUBLER

产品型号         IH510-080ZR33-01024                       Global

产品型号         H20DB-39-F50-SS     924-01039-1457                BEI

产品型号         UN-360C4                          MUTOH

产品型号         GI330.N60R031000                            IVO

产品型号         EMA55A2048B8/30SPX8X10PR2,5                    ELTRA

产品型号         PHU930-1316-004                      BEIIDEACOD

产品型号         W1A91R/0100                   HOHNER

产品型号         PD100120PP1                    ELAP

产品型号         21-X11-60  DN00                      HOHNER

产品型号         DH0514-8192-003                      BEI

产品型号         EX80A600S5/28P10X3PR7                          ELTRA

产品型号         F 574.6.40AE3B                          IVO

产品型号         MS132A3/4096                           HOHNER

产品型号         21-212B3/20                      HOHNER

产品型号         CHK508-14BTS001                     BEI

产品型号         8.A02H.3A31.2048                    KUBLER

产品型号         59-12111-1024                            HOHNER

产品型号         HD25-2500-F-N-H-IE-D                       US DIGITAL

产品型号         58-11122-1024                            HOHNER

产品型号         DLK1-133R-1024               SPR-010 HOHNER

产品型号         STD-F6A-12T                       POSTECH

产品型号         25T(25T-C-34SE-1000NV1QH5-SMK-S3)                    ACCU-CODER

产品型号         EH80C2048Z8/24L14X3MR.454+197                         ELTRA

产品型号         QD145-05/05-2000-8-01-T6-01-00           QR145-05/05-2000-8-01-T6-01-00  QUANTUM

产品型号         H2320480032XX06                    DYNAPAR

产品型号         ISD371024HLDC02                    DYNAPAR上海航欧销售ELKO传感器ELKO电流变送器ELKO电流传感器ELKO电流互感器ELKO电源ELKO缓冲块ELKO缓冲器ELKO计时器ELKO继电器ELKO时间继电器ELKO温度传感器ELKO橡胶垫ELKO橡胶块ELKO开关