标准编号标准中文名称标准英文名称SY/T5835-93 压裂用井口球阀 GB/T12237-1989 通用阀门法兰和对焊连接钢制球阀General purpo industrial valves--Flanged and butt-weld end steel ball valvesGB/T15185-1994 铁制和铜制球阀Cast iron and copper alloy ball va
标准编号标准中文名称标准英文名称SY/T5835-93 压裂用井口球阀 GB/T12237-1989 通用阀门法兰和对焊连接钢制球阀General purpo industrial valves--Flanged and butt-weld end steel ball valvesGB/T15185-1994 铁制和铜制球阀Cast iron and copper alloy ball va
标准编号标准中文名称标准英文名称SY/T5835-93 压裂用井口球阀 GB/T12237-1989 通用阀门法兰和对焊连接钢制球阀General purpo industrial valves--Flanged and butt-weld end steel ball valvesGB/T15185-1994 铁制和铜制球阀Cast iron and copper alloy ball va
球阀标准汇总标准编号 标准中文名称 标准英文名称SY/T5835-93 压裂用井口球阀GB/T12237-1989通用阀门法兰和对焊连接钢制球阀General purpo industrialvalves--Flanged and butt-weld end steel ball valvesGB/T15185-1994 铁制和铜制球阀 Cast iron and co