CV-SWB4-PN16系列特色益处13671928373铸铁阀体不锈钢阀板规格口径DN50~300(2”~12”)公称压力PN16适用介质水或中性液体介质温度-10℃~+120℃连接标准ISO7005-2测试标准ISO5208-200813671928373CV-SWB4-PN16系列型号CV-SWB4-PN16-0050CV-SWB4-PN16-0065CV-SWB4-PN16-0080CV-SWB4-PN16-0100CV-SWB4-PN16-0125CV-SWB4-PN16-0150CV-SWB4-PN16-0200CV-SWB4-PN16-0250CV-SWB4-PN16-0300)