压力继电器JCS-02NDNB-250K-22B型号使用压力范围MPa***高使用压力MPa重量KgJCS-02NL2.5-6211.0JCS-02NLL0.5-671.0JPS-02HM3-21211.45JPS-02L2.5-6211.45JPS-02LL0.5-671.45MJCS-02P-N3-21211.8MJCS-02A-NMJCS-02B-NMJCS-02W-N2.5MJCS-02P-L2.5-671.8MJCS-02A-LMJCS-02B-LMJCS-02W-L2.5MJCS-02P-LL0.5-671.8MJCS-02A-LLMJCS-02B-LLMJCS-02W-LL2.5MJCS-03P-N3-21212.8MJCS-03A-NMJCS-03B-NMJCS-03W-N3.5MJCS-03P-L2.5-672.8MJCS-03A-LMJCS-03B-LMJCS-03W-L3.5MJCS-03P-LL0.5-672.8MJCS-03A-LLMJCS-03B-LLMJCS-03W-LL3.5)