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

锻钢不锈钢国标升降式止回阀 H41H-16/25/40

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-16/25

国标不锈钢法兰明杆楔式闸阀 GB s.s flange RS wedge gate valve Z41W-16/25

锻钢碳钢国标升降式止回阀 H41H-64/100/160/250

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

国标化工部浮动球阀 GB HG flange ball valve Q341F-16

锻钢不锈钢国标升降式止回阀 H41H-64/100/160/250

国标弹性座封软密封闸阀 GB RS wedge soft-sealed gate valve Z40X-16

全焊接全通径球阀Q61HF-16/40C CF8球 固定手柄 防腐蚀漆

二片式碟簧球阀 2PC disc spring ball valve Q11F-20P