锻钢碳钢美标升降式止回阀 H41H-150LB/300LB/600LB/900LB/1500LB

全焊接球阀Q61HF-16/40C CF8球 缩径锻压球阀 带固定手柄

封闭式弹簧全启式安全阀 closed spring full lift safety valve A42Y

锻钢不锈钢美标升降式止回阀 H41H-150LB/300LB/600LB/900LB/1500LB

全焊接球阀Q61HF-16/40C CF8球 缩径锻压球阀 带活动手柄

法兰球墨铸铁蝶阀 flange SG iron butterfly valve D41X-10Q

锻钢碳钢美标旋启式止回阀 H44H-150LB/300LB/600LB/900LB/1500LB

封闭式弹簧全启式安全阀 closed spring full lift safety valve A42F

全焊接涡轮球阀 Q361HF-16/25C CF8球 缩径锻压球阀 双极涡轮 防腐蚀漆

国标一片式碳钢球阀 GB 1PC SS ball valve Q11F-16/64

蜗轮法兰球墨铸铁蝶阀 worm flange SG iron butterfly valve D341X-10Q

锻钢不锈钢美标旋启式止回阀 H44H-150LB/300LB/600LB/900LB/1500LB