SCV-20A71M-20-DC12V,SCV-20A71M-20-DC24V,SCV-20A71M-20-AC24V,零泄漏电动止回阀
SCV-20A71M-20-AC110V,SCV-20A71M-20-AC220V,SCV-20A71M-20-AC380V,
SCV-20A71M-20-OM-DC12V,SCV-20A71M-20-OM-DC24V,SCV-20A71M-20-OM-AC24V,
SCV-20A71M-20-OM-AC110V,SCV-20A71M-20-OM-AC220V,SCV-20A71M-20-OM-AC380V,