... ball type tubing safety valve 油管球形安全阀 Ball valve Type 设计与制造 ; 球阀种类 ball-type valve 球型瓣膜 ; 钢珠活门 ...
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ball-type valve 钢珠活门 ; 球型瓣膜
ball type tubing safety valve 油管球形安全阀
ball-and-dish seat type valve 球及球座型阀
ball type valve [机] 球形阀 ; 球型阀
discharge-type ball valve 卸荷式球阀
O-type ball valve O形球阀
Valves have been specified as Ball valve type, however the Contractor may offer an alternative recommendation, subject to approval by Client.
阀门类型规定为球阀，但承包商可提出不同建议，由业主批准。
A kind of slope slots and embeded plates hoisting expanding type valve sealing mechanism which is suitable for ball valves, butterfly valves and plug valves is introduced.
介绍了一种适用于球阀、蝶阀和旋塞阀的斜槽插板升降撑拢式阀门密封结构。
A type of dual slots helix hoisting composite valve switch mechanism which is suitable for ball valves, butterfly valves and plug valves is introduced.
介绍了一种适用于球阀、蝶阀和旋塞阀的斜槽插板升降撑拢式阀门密封结构。
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