阀杆、阀瓣 Stem,Disc ; Bonnet bolt ; BODY Bonnet ; Stem, Disc
阀杆、阀盖 Stem,Bonnet ; Body Bonnet ; Stem Bonnet
阀杆、阀盖、螺栓 Body,Bonnet bolt ; Part name
阀杆、阀瓣密封圈 Stem,Disc,Gasket ; Body,Bonnet bolt
杠杆阀 [机] lever valve
方钻杆阀 Kelly Cock ; kelly valve
升杆阀 elevating valve
长杆阀 long stem valve
阀杆、阀瓣、密封圈 Bonnet bolt
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