对夹升降式止回阀 wafer lift check valve H71H-40

法兰三偏心多层次硬密封蝶阀 flange three eccentric multi-level hard seal butterfly valve D343W-10/16/25/40R

波纹管弹簧全启式安全阀 WA42Y-16R

国标二片式高平台球阀 GB 2PC high-platform ball valve Q11F-16/64

化工部法兰衬氟球阀CCC认证 HG flange fluorine lined ball valve.3C Q41F46

全封闭带扳手全启式安全阀 A44Y

放料球阀 discharge ball valve FQ41F46-10

抗生素截止阀内抛光 antibiotic globe valve inner ploshing KJ41W-16P

国标三片式高平台球阀 GB 3PC high-platform ball valve Q11F-16/64

铜材质丝扣安全阀A27W

氧气截止阀 oxygen globe valve JY41W-16P

衬四氟法兰闸阀 fluorine flange gate valve Z41F46