额定电压 450/750 V及以下聚氯乙烯绝缘电缆电线和软线 第1部分:一般规定
Polyvinyl chloride insulated cables and wires and cordsof rated voltages up to and including 450/750V-Part 1: General requirements
检测标准
铁制、铜制和不锈钢制螺纹连接阀门
Cast iron ,copper and stainless steel valves with screwed connections
给水排水用蝶阀
Butterfly valvesforwatersupply anddrainage
给水排水用软密封闸阀
Resilient-seated gatevalvesforwatersupply anddrainageservice
通用阀门 法兰连接铁制闸阀
General purpose industrial valvesFlanged iron gate valves
金属密封蝶阀
Metallic sealing butterfly valve
法兰和对夹连接弹性密封蝶阀
Flanged and wafer resilient seal butterfly valves
工业阀门 压力试验
Industrial valves-Pressure testing
金属密封球阀
Metal-seated ball valve
石油、石化及相关工业用的钢制球阀
Steel ball valves for petroleum, petrochemical and allied industries
