观看产品视频CHEMLINE730NC040AEF 现货Diaphragm valve; NOMINAL SIZE: 4"; PRESSURE: 150 psi; BODY TYPE: STRAIGHT; BODY MATERIAL: PVC; DIAPHRAGM MATERIAL: EPDM; MOUNTING TYPE: RF FLANGES PER ANSI B16.5; FLUIDS: AIR,… 获取报价