封闭式带扳手弹簧全启式安全阀 closed spring full-lift safety valve with level A44Y

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

黄铜内螺纹闸阀 brass FNPT gate valve Z11W-16T

放料球阀 discharge ball valve FQ41F46-10

氧气截止阀 oxygen globe valve JY41W-16P

美标碳钢法兰锻钢闸阀 Z41H

一片式锻钢高压球阀 Q11F-300/900LB A105

衬四氟法兰闸阀 fluorine flange gate valve Z41F46

开放式带扳手弹簧微启式外螺纹安全阀 A27H

氨用截止阀 ammonia globe valve J41B-16P

美标自密封法兰锻钢闸阀 Z41H