全焊接固定球阀 Q367HF-16/25C CF8球 缩径锻压球阀 双极涡轮 防腐蚀油漆

D71 对夹手柄蝶阀

弹簧全启式安全阀 A48Y

美式丝扣截止阀 American style thread gate valve J11W-16

美标铸钢明杆楔式闸阀 ANSI cast steel RS wedge gate valve Z41H-150LB

D371 蜗轮对夹式蝶阀

衬氟安全阀 A42F46-16C 内件材质最低要求CF8

美标不锈钢明杆楔式闸阀 ANSI stainless steel RS wedge gate valve Z41H-150LB

国标二片式球阀 GB 2PC ball valve Q11F-16/40

化工部法兰球阀重型 HG flange ball valve(with worm) heavy type Q41/Q341F-16

美标铸钢明杆楔式闸阀 ANSI cast steel RS wedge gate valve Z41H-300LB

平行式安全回流阀 AHN42F-P18C