德标高平台法兰球阀 DIN high-platform flange ball valve Q41F-16

不锈钢美标法兰旋启式止回阀 s.s ANSI flange swing check valve H44W-150LB

国标高平台法兰球阀 GB high-platform ball valve Q41F-25

美标高平台球阀 ANSI high-platform ball valve Q41F-150LB

不锈钢美标法兰旋启式止回阀 s.s ANSI flange swing check valve H44W-300LB

国标化工部固定球阀 GB HG TB ball valve Q347F-16

国标法兰明杆楔式闸阀 GB flange RS wedge gate valve Z41W-16

美标法兰球阀 ANSI flange ball valve Q41F-150LB

美标法兰球阀 ANSI flange ball valve Q41F-300LB

国标铸钢法兰明杆楔式闸阀 GB c.s flange RS wedge gate valve Z41W-25

国标不锈钢法兰明杆楔式闸阀 GB s.s flange RS wedge gate valve Z41W-25

国标法兰暗杆楔式闸阀 GB flange NS wedge gate valve Z45W-16