肥鄉(xiāng)縣SANIL開關(guān)SC-18MS-ACM18,1-4.0mm,,DC18-30V韓國Sinwoo S-CON變送器。中山立訊電氣有限公司,中山朗立電氣有限公司DST-D-3X DST-D-3Y DST-D-4X DST-D-4Y DST-D-5X DST-D-5Y
DST-I-3X DST-I-3Y DST-I-4X DST-I-4Y DST-I-5X DST-I-5Y
DST-R-3X DST-R-3Y DST-R-4X DST-R-4Y DST-T-4X DST-T-4Y
DST-R-5X DST-R-5Y DST-T-3X DST-T-3Y DST-T-4X DST-T-4Y
DST-T-5X DST-T-5Y DST-P-3X DST-P-3Y DST-P-4X DST-P-4Y
DST-P-5X DST-P-5Y DST-O-3X DST-O-3Y DST-O-4X DST-O-4Y
DST-O-5X DST-O-5Y DSTM-D-VX DSTM-D-VY DSTM-D-IX DSTM-D-IY
DSTM-D-OX DSTM-D-OY DSTM-I-VX DSTM-I-VY DSTM-I-IX DSTM-I-IY
DSTM-I-OX DSTM-I-OY DSTM-A-VX DSTM-A-VY DSTM-A-IX DSTM-A-IY
DSTM-A-OX DSTM-A-OY DSTM-R-VX DSTM-R-VY DSTM-R-IX DSTM-R-IY
DSTM-R-OX DSTM-R-OY DSTM-P-VX DSTM-P-VY DSTM-P-IX DSTM-P-IY
DSTM-P-OX DSTM-P-OY DSTM-O-VX DSTM-O-VY DSTM-O-IX DSTM-O-IY
DSTM-O-OX DSTM-O-OY
FFC-4AA-W FFC-4AA-X FFC-4AA-Z FFC-4AA-Y
FFC-4AB-W FFC-4AB-X FFC-4AB-Z FFC-4AB-Y
FFC-4AC-W FFC-4AC-X FFC-4AC-Z FFC-4AC-Y
FFC-4AD-W FFC-4AD-X FFC-4AD-Z FFC-4AD-Y
FFC-4AR-W FFC-4AR-X FFC-4AR-Z FFC-4AR-Y
FFC-4AN-W FFC-4AN-X FFC-4AN-Z FFC-4AN-Y
FFC-4BA-W FFC-4BA-X FFC-4BA-Z FFC-4BA-Y
FFC-4BB-W FFC-4BB-X FFC-4BB-Z FFC-4BB-Y
FFC-4BC-W FFC-4BC-X FFC-4BC-Z FFC-4BC-Y
FFC-4BD-W FFC-4BD-X FFC-4BD-Z FFC-4BD-Y
等效成兩相靜止坐標(biāo)系下的交流電流Ia1Ib1，再通過按轉(zhuǎn)子磁場定向旋轉(zhuǎn)變換，等效成同步旋轉(zhuǎn)坐標(biāo)系下的直流電流ImIt1(Im1相當(dāng)于直流電動(dòng)機(jī)的勵(lì)磁電流；It1相當(dāng)于與轉(zhuǎn)矩成正比的電樞電流)，然后模仿直流電動(dòng)機(jī)的控制方法，求得直流電動(dòng)機(jī)的控制量，經(jīng)過相應(yīng)的坐標(biāo)反變換，實(shí)現(xiàn)對(duì)異步電動(dòng)機(jī)的控制。其實(shí)質(zhì)是將交流電動(dòng)機(jī)等效為直流電動(dòng)機(jī)，分別對(duì)速度，磁場兩個(gè)分量進(jìn)行獨(dú)立控制。通過控制轉(zhuǎn)子磁鏈，然后分解定子電流而獲得轉(zhuǎn)矩和磁場兩個(gè)分量，經(jīng)坐標(biāo)變換，實(shí)現(xiàn)正交或解耦控制。矢量控制方法的提出具有劃時(shí)代的意義。然而在實(shí)際應(yīng)用中，由于轉(zhuǎn)子磁鏈難以準(zhǔn)確觀測，系統(tǒng)特性受電動(dòng)機(jī)參數(shù)的影響較大，且在等效直流電動(dòng)機(jī)控制過程中所用矢量旋轉(zhuǎn)變換較復(fù)雜。
肥鄉(xiāng)縣SANIL開關(guān)SC-18MS-ACM18,1-4.0mm,,DC18-30V
FFC-4BR-W FFC-4BR-X FFC-4BR-Z FFC-4BR-Y
FFC-4BN-W FFC-4BN-X FFC-4BN-Z FFC-4BN-Y
FFC-4CA-W FFC-4CA-X FFC-4CA-Z FFC-4CA-Y
FFC-4CB-W FFC-4CB-X FFC-4CB-Z FFC-4CB-Y
FFC-4CC-W FFC-4CC-X FFC-4CC-Z FFC-4CC-Y
FFC-4CD-W FFC-4CD-X FFC-4CD-Z FFC-4CD-Y
FFC-4CR-W FFC-4CR-X FFC-4CR-Z FFC-4CR-Y
FFC-4CN-W FFC-4CN-X FFC-4CN-Z FFC-4CN-Y
FFC-4DA-W FFC-4DA-X FFC-4DA-Z FFC-4DA-Y
FFC-4DB-W FFC-4DB-X FFC-4DB-Z FFC-4DB-Y
FFC-4DC-W FFC-4DC-X FFC-4DC-Z FFC-4DC-Y
FFC-4DD-W FFC-4DD-X FFC-4DD-Z FFC-4DD-Y
FFC-4DR-W FFC-4DR-X FFC-4DR-Z FFC-4DR-Y
FFC-4DN-W FFC-4DN-X FFC-4DN-Z FFC-4DN-Y
FFC-4RA-W FFC-4RA-X FFC-4RA-Z FFC-4RA-Y
FFC-4RB-W FFC-4RB-X FFC-4RB-Z FFC-4RB-Y
FFC-4RC-W FFC-4RC-X FFC-4RC-Z FFC-4RC-Y
FFC-4RD-W FFC-4RD-X FFC-4RD-Z FFC-4RD-Y
FFC-4RR-W FFC-4RR-X FFC-4RR-Z FFC-4RR-Y
FFC-4RN-W FFC-4RN-X FFC-4RN-Z FFC-4RN-Y
FFC-9AA-W FFC-9AA-X FFC-9AA-Z FFC-9AA-Y
傳遞觸發(fā)信號(hào)，一般采用光纖傳輸，能有效地避免各種電磁干擾。通過光纖傳遞信號(hào)，也有兩種方式：一種多光纖方式，一種單光纖方式。多光纖方式即每塊觸發(fā)板有一路光纖；單光纖方式即每一相只有一路光纖，信號(hào)傳遞到一塊主觸發(fā)板，再由主觸發(fā)板傳遞到同一相的其他觸發(fā)板。由于各路光纖光電傳輸過程中損耗不盡一致，因此從觸發(fā)一致性上看，單光纖的方式比多光纖可靠。高壓軟啟動(dòng)器對(duì)信號(hào)的檢測比低壓軟啟動(dòng)器要求更高。高壓軟起動(dòng)器所在的環(huán)境存在著大量的電磁干擾，并且高壓軟啟動(dòng)器所用的真空接觸器和真空斷路器在其分?jǐn)嗪烷]合過程中會(huì)產(chǎn)生大量的電磁干擾。所以對(duì)檢測到的信號(hào)不僅要進(jìn)行硬件濾波，也要進(jìn)行軟件濾波，去掉干擾信號(hào)。軟啟動(dòng)器在完成啟動(dòng)過程后。
肥鄉(xiāng)縣SANIL開關(guān)SC-18MS-ACM18,1-4.0mm,,DC18-30V
FFC-9AB-W FFC-9AB-X FFC-9AB-Z FFC-9AB-Y
FFC-9AC-W FFC-9AC-X FFC-9AC-Z FFC-9AC-Y
FFC-9AD-W FFC-9AD-X FFC-9AD-Z FFC-9AD-Y
FFC-9AR-W FFC-9AR-X FFC-9AR-Z FFC-9AR-Y
FFC-9AN-W FFC-9AN-X FFC-9AN-Z FFC-9AN-Y
FFC-9BA-W FFC-9BA-X FFC-9BA-Z FFC-9BA-Y
FFC-9BB-W FFC-9BB-X FFC-9BB-Z FFC-9BB-Y
FFC-9BC-W FFC-9BC-X FFC-9BC-Z FFC-9BC-Y
FFC-9BD-W FFC-9BD-X FFC-9BD-Z FFC-9BD-Y
FFC-9BR-W FFC-9BR-X FFC-9BR-Z FFC-9BR-Y
FFC-9BN-W FFC-9BN-X FFC-9BN-Z FFC-9BN-Y
FFC-9CA-W FFC-9CA-X FFC-9CA-Z FFC-9CA-Y
FFC-9CB-W FFC-9CB-X FFC-9CB-Z FFC-9CB-Y
FFC-9CC-W FFC-9CC-X FFC-9CC-Z FFC-9CC-Y
FFC-9CD-W FFC-9CD-X FFC-9CD-Z FFC-9CD-Y
FFC-9CR-W FFC-9CR-X FFC-9CR-Z FFC-9CR-Y
FFC-9CN-W FFC-9CN-X FFC-9CN-Z FFC-9CN-Y
FFC-9DA-W FFC-9DA-X FFC-9DA-Z FFC-9DA-Y
FFC-9DB-W FFC-9DB-X FFC-9DB-Z FFC-9DB-Y
FFC-9DC-W FFC-9DC-X FFC-9DC-Z FFC-9DC-Y
FFC-9DD-W FFC-9DD-X FFC-9DD-Z FFC-9DD-Y
FFC-9DR-W FFC-9DR-X FFC-9DR-Z FFC-9DR-Y
FFC-9DN-W FFC-9DN-X FFC-9DN-Z FFC-9DN-Y
FFC-9RA-W FFC-9RA-X FFC-9RA-Z FFC-9RA-Y
FFC-9RB-W FFC-9RB-X FFC-9RB-Z FFC-9RB-Y
FFC-9RC-W FFC-9RC-X FFC-9RC-Z FFC-9RC-Y
FFC-9RD-W FFC-9RD-X FFC-9RD-Z FFC-9RD-Y
FFC-9RR-W FFC-9RR-X FFC-9RR-Z FFC-9RR-Y
FFC-9RN-W FFC-9RN-X FFC-9RN-Z FFC-9RN-Y
S-CON100 S-CON200 S-CON300
IPD-2A1-W IPD-2A1-X IPD-2A1-Y IPD-2A1-Z
IPD-2A2-W IPD-2A2-X IPD-2A2-Y IPD-2A2-Z
IPD-2A3-W IPD-2A3-X IPD-2A3-Y IPD-2A3-Z
IPD-2A4-W IPD-2A4-X IPD-2A4-Y IPD-2A4-Z
IPD-2A5-W IPD-2A5-X IPD-2A5-Y IPD-2A5-Z
IPD-2A6-W IPD-2A6-X IPD-2A6-Y IPD-2A6-Z
IPD-2A7-W IPD-2A7-X IPD-2A7-Y IPD-2A7-Z
IPD-2A8-W IPD-2A8-X IPD-2A8-Y IPD-2A8-Z
IPD-2AR-W IPD-2AR-X IPD-2AR-Y IPD-2AR-Z
IPD-2AN-W IPD-2AN-X IPD-2AN-Y IPD-2AN-Z
IPD-2R1-W IPD-2R1-X IPD-2R1-Y IPD-2R1-Z
IPD-2R2-W IPD-2R2-X IPD-2R2-Y IPD-2R2-Z
IPD-2R3-W IPD-2R3-X IPD-2R3-Y IPD-2R3-Z
IPD-2R4-W IPD-2R4-X IPD-2R4-Y IPD-2R4-Z
IPD-2R5-W IPD-2R5-X IPD-2R5-Y IPD-2R5-Z
IPD-2R6-W IPD-2R6-X IPD-2R6-Y IPD-2R6-Z
IPD-2R7-W IPD-2R7-X IPD-2R7-Y IPD-2R7-Z
IPD-2R8-W IPD-2R8-X IPD-2R8-Y IPD-2R8-Z
IPD-2RR-W IPD-2RR-X IPD-2RR-Y IPD-2RR-Z
IPD-2RN-W IPD-2RN-X IPD-2RN-Y IPD-2RN-Z
IPD-4A1-W IPD-4A1-X IPD-4A1-Y IPD-4A1-Z
都是必不可少的。中文名轉(zhuǎn)速表外文名tachometer應(yīng)用行業(yè)機(jī)械行業(yè)用處電機(jī)的轉(zhuǎn)速、線速度或頻率適用領(lǐng)域飛機(jī)、輪船等制造業(yè)工作原理磁性原理目錄1轉(zhuǎn)速概念2工作原理?技術(shù)參數(shù)?工作優(yōu)點(diǎn)3轉(zhuǎn)速表分類?離心式轉(zhuǎn)速儀?磁性轉(zhuǎn)速儀4用途轉(zhuǎn)速概念編輯轉(zhuǎn)速是旋轉(zhuǎn)體轉(zhuǎn)數(shù)與時(shí)間之比的物理量，工程上通常表示為轉(zhuǎn)速=旋轉(zhuǎn)次數(shù)/時(shí)間，是描述物體旋轉(zhuǎn)運(yùn)動(dòng)的一個(gè)重要參數(shù)。電工中常需要測量電機(jī)及其拖動(dòng)設(shè)備的轉(zhuǎn)速，使用的就是便攜式轉(zhuǎn)速表。轉(zhuǎn)速表是用來測量電機(jī)轉(zhuǎn)速和線速度的儀表。轉(zhuǎn)速表種類較多，便攜式一般有機(jī)械離心式轉(zhuǎn)速表和數(shù)字電子式轉(zhuǎn)速表。工作原理編輯轉(zhuǎn)速表將接收的數(shù)字脈沖信號(hào)（由傳感器發(fā)出的），處理后直接讀入cpu的計(jì)數(shù)口。
肥鄉(xiāng)縣SANIL開關(guān)SC-18MS-ACM18,1-4.0mm,,DC18-30V
IPD-4A2-W IPD-4A2-X IPD-4A2-Y IPD-4A2-Z
IPD-4A3-W IPD-4A3-X IPD-4A3-Y IPD-4A3-Z
IPD-4A4-W IPD-4A4-X IPD-4A4-Y IPD-4A4-Z
IPD-4A5-W IPD-4A5-X IPD-4A5-Y IPD-4A5-Z
IPD-4A6-W IPD-4A6-X IPD-4A6-Y IPD-4A6-Z
IPD-4A7-W IPD-4A7-X IPD-4A7-Y IPD-4A7-Z
IPD-4A8-W IPD-4A8-X IPD-4A8-Y IPD-4A8-Z
IPD-4AR-W IPD-4AR-X IPD-4AR-Y IPD-4AR-Z
IPD-4AN-W IPD-4AN-X IPD-4AN-Y IPD-4AN-Z
IPD-4R1-W IPD-4R1-X IPD-4R1-Y IPD-4R1-Z
IPD-4R2-W IPD-4R2-X IPD-4R2-Y IPD-4R2-Z
IPD-4R3-W IPD-4R3-X IPD-4R3-Y IPD-4R3-Z
IPD-4R4-W IPD-4R4-X IPD-4R4-Y IPD-4R4-Z
IPD-4R5-W IPD-4R5-X IPD-4R5-Y IPD-4R5-Z
IPD-4R6-W IPD-4R6-X IPD-4R6-Y IPD-4R6-Z
IPD-4R7-W IPD-4R7-X IPD-4R7-Y IPD-4R7-Z
IPD-4R8-W IPD-4R8-X IPD-4R8-Y IPD-4R8-Z
IPD-4RR-W IPD-4RR-X IPD-4RR-Y IPD-4RR-Z
IPD-4RN-W IPD-4RN-X IPD-4RN-Y IPD-4RN-Z
IPD-7A1-W IPD-7A1-X IPD-7A1-Y IPD-7A1-Z
IPD-7A2-W IPD-7A2-X IPD-7A2-Y IPD-7A2-Z
IPD-7A3-W IPD-7A3-X IPD-7A3-Y IPD-7A3-Z
IPD-7A4-W IPD-7A4-X IPD-7A4-Y IPD-7A4-Z
IPD-7A5-W IPD-7A5-X IPD-7A5-Y IPD-7A5-Z
IPD-7A6-W IPD-7A6-X IPD-7A6-Y IPD-7A6-Z
IPD-7A7-W IPD-7A7-X IPD-7A7-Y IPD-7A7-Z
IPD-7A8-W IPD-7A8-X IPD-7A8-Y IPD-7A8-Z
IPD-7AR-W IPD-7AR-X IPD-7AR-Y IPD-7AR-Z
IPD-7AN-W IPD-7AN-X IPD-7AN-Y IPD-7AN-Z
IPD-7R1-W IPD-7R1-X IPD-7R1-Y IPD-7R1-Z
IPD-7R2-W IPD-7R2-X IPD-7R2-Y IPD-7R2-Z
IPD-7R3-W IPD-7R3-X IPD-7R3-Y IPD-7R3-Z
IPD-7R4-W IPD-7R4-X IPD-7R4-Y IPD-7R4-Z
IPD-7R5-W IPD-7R5-X IPD-7R5-Y IPD-7R5-Z
IPD-7R6-W IPD-7R6-X IPD-7R6-Y IPD-7R6-Z
IPD-7R7-W IPD-7R7-X IPD-7R7-Y IPD-7R7-Z
IPD-7R8-W IPD-7R8-X IPD-7R8-Y IPD-7R8-Z
IPD-7RR-W IPD-7RR-X IPD-7RR-Y IPD-7RR-Z
IPD-7RN-W IPD-7RN-X IPD-7RN-Y IPD-7RN-Z
IPD-9A1-W IPD-9A1-X IPD-9A1-Y IPD-9A1-Z
IPD-9A2-W IPD-9A2-X IPD-9A2-Y IPD-9A2-Z
IPD-9A3-W IPD-9A3-X IPD-9A3-Y IPD-9A3-Z
IPD-9A4-W IPD-9A4-X IPD-9A4-Y IPD-9A4-Z
IPD-9A5-W IPD-9A5-X IPD-9A5-Y IPD-9A5-Z
走紙速度為10mm/h到1990mm/h。10．報(bào)警功能:·提供六組繼電器接點(diǎn)輸出，由用戶任意組合使用·每個(gè)通道報(bào)警均可選擇上限、下限、差值上限、差值下限·每個(gè)通道的報(bào)警回差可設(shè)定，繼電器動(dòng)作時(shí)有指示燈提示·繼電器觸點(diǎn)容量：24VDC,3A；220VAC,3A11．通訊：可提供RS232C或RS485通訊接口【此項(xiàng)為擴(kuò)展功能,定貨時(shí)須注明】12．模擬量輸出：可提供兩路4~20mA模擬量傳送輸出【此項(xiàng)為擴(kuò)展功能,定貨時(shí)須注明】13．采樣周期:0.6S14．?dāng)?shù)字顯示及報(bào)警精度:±0.2%F?S15．趨勢記錄精度:±0.2%「兩幅」16．?dāng)?shù)字記錄精度:±0.2%F?S17．輸入阻抗:大于10MW〖注：進(jìn)行電流測量時(shí)。
肥鄉(xiāng)縣SANIL開關(guān)SC-18MS-ACM18,1-4.0mm,,DC18-30V
IPD-9A6-W IPD-9A6-X IPD-9A6-Y IPD-9A6-Z
IPD-9A7-W IPD-9A7-X IPD-9A7-Y IPD-9A7-Z
IPD-9A8-W IPD-9A8-X IPD-9A8-Y IPD-9A8-Z
IPD-9AR-W IPD-9AR-X IPD-9AR-Y IPD-9AR-Z
IPD-9AN-W IPD-9AN-X IPD-9AN-Y IPD-9AN-Z
IPD-9R1-W IPD-9R1-X IPD-9R1-Y IPD-9R1-Z
IPD-9R2-W IPD-9R2-X IPD-9R2-Y IPD-9R2-Z
IPD-9R3-W IPD-9R3-X IPD-9R3-Y IPD-9R3-Z
IPD-9R4-W IPD-9R4-X IPD-9R4-Y IPD-9R4-Z
IPD-9R5-W IPD-9R5-X IPD-9R5-Y IPD-9R5-Z
IPD-9R6-W IPD-9R6-X IPD-9R6-Y IPD-9R6-Z
IPD-9R7-W IPD-9R7-X IPD-9R7-Y IPD-9R7-Z
IPD-9R8-W IPD-9R8-X IPD-9R8-Y IPD-9R8-Z
IPD-9RR-W IPD-9RR-X IPD-9RR-Y IPD-9RR-Z
IPD-9RN-W IPD-9RN-X IPD-9RN-Y IPD-9RN-Z
IR-V100-W IR-V100-X IR-V100-Y IR-V100-Z
IR-V135-W IR-V135-X IR-V135-Y IR-V135-Z
IR-V500-W IR-V500-X IR-V500-Y IR-V500-Z
IR-V1K-W IR-V1K-X IR-V1K-Y IR-V1K-Z
IR-V5K-W IR-V5K-X IR-V5K-Y IR-V5K-Z
IR-V10K-W IR-V10K-X IR-V10K-Y IR-V10K-Z
IR-V100K-W IR-V100K-X IR-V100K-Y IR-V100K-Z
IR-I100-W IR-I100-X IR-I100-Y IR-I100-Z
IR-I135-W IR-I135-X IR-I135-Y IR-I135-Z
IR-I500-W IR-I500-X IR-I500-Y IR-I500-Z
IR-I1K-W IR-I1K-X IR-I1K-Y IR-I1K-Z
IR-I5K-W IR-I5K-X IR-I5K-Y IR-I5K-Z
IR-I10K-W IR-I10K-X IR-I10K-Y IR-I10K-Z
IR-I100K-W IR-I100K-X IR-I100K-Y IR-I100K-
IR-R100-W IR-R100-X IR-R100-Y IR-R100-Z
IR-R135-W IR-R135-X IR-R135-Y IR-R135-Z
IR-R500-W IR-R500-X IR-R500-Y IR-R500-Z
IR-R1K-W IR-R1K-X IR-R1K-Y IR-R1K-Z
IR-R5K-W IR-R5K-X IR-R5K-Y IR-R5K-Z
IR-R10K-W IR-R10K-X IR-R10K-Y IR-R10K-Z
IR-R100K-W IR-R100K-X IR-R100K-Y IR-R100K-Z
IR-P100-W IR-P100-X IR-P100-Y IR-P100-Z
IR-P135-W IR-P135-X IR-P135-Y IR-P135-Z
IR-P500-W IR-P500-X IR-P500-Y IR-P500-Z
IR-P1K-W IR-P1K-X IR-P1K-Y IR-P1K-Z
IR-P5K-W IR-P5K-X IR-P5K-Y IR-P5K-Z
IR-P10K-W IR-P10K-X IR-P10K-Y IR-P10K-Z
IR-P100K-W IR-P100K-X IR-P100K-Y IR-P100K-Z
IR-O100-W IR-O100-X IR-O100-Y IR-O100-Z
IR-O135-W IR-O135-X IR-O135-Y IR-O135-Z
IR-O500-W IR-O500-X IR-O500-Y IR-O500-Z
IR-O1K-W IR-O1K-X IR-O1K-Y IR-O1K-Z
IR-O5K-W IR-O5K-X IR-O5K-Y IR-O5K-Z
IR-O10K-W IR-O10K-X IR-O10K-Y IR-O10K-Z
IR-O100K-W IR-O100K-X IR-O100K-Y IR-O100K-Z
要切換到旁路運(yùn)行狀態(tài)，如何平滑地切換到運(yùn)行狀態(tài)，這也是軟啟動(dòng)器的一個(gè)難點(diǎn)，如何選準(zhǔn)旁路點(diǎn)非常重要。旁路點(diǎn)早了，電流沖擊非常大，即使在低壓條件下，也會(huì)造成三相電源中斷路器跳閘，甚至?xí)p壞斷路器。高壓條件下危害更大。旁路點(diǎn)遲了，電機(jī)抖動(dòng)得厲害，影響負(fù)載正常工作。因此，旁路信號(hào)的硬件檢測電路必須非常，并且程序處理也要恰到好處。維修檢查編輯平時(shí)注意檢查軟起動(dòng)器的環(huán)境條件，防止在超過其允許的環(huán)境條件下運(yùn)行。注意檢查軟起動(dòng)器周圍是否有妨礙其通風(fēng)散熱的物體，確保軟起動(dòng)器四周有足夠的空間（大于150mm）。定期檢查配電線端子是否松動(dòng)，柜內(nèi)元器件有否過熱、變色、焦臭味等異?，F(xiàn)象。定期清掃灰塵，以免影響散熱，防止晶閘管因溫升過高而損壞。
肥鄉(xiāng)縣SANIL開關(guān)SC-18MS-ACM18,1-4.0mm,,DC18-30V
