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1 ?环室 ... casing O-ring 泵壳O型环 ring casing 环室 casing hold-down ring 套管压紧环 ...
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Teflon - lined pipe, casing, elbow, the three exchanges or four, size head, cylinder, air compressor - oxygen - ring, gasket seal ring and auto parts. 聚四氟乙烯内衬直管， 套管，弯头，三通，四通，大小头，筒体，空压机-制氧机- 活塞环、密封圈和汽配封圈。 - 2
The utility model relates to a motorcycle handle switch device which comprises a switch casing, a driving shaft, a contact ring, a contact sheet, a spring, a base plate and a wire. 一种摩托车手柄开关装置，包括开关壳体、传动轴、接触环、接触片、弹簧、 基板以及配线。 - 3
The resistance of nitrided J55 casing to sulfide stress cracking (SSC) was studied by C-ring testing and three-point bending testing under different conditions. 用应力环腐蚀试验和三(四)点弯曲试验研究了某J 55(即石油套管)渗氮套管在不同试验条件下的腐蚀行为，并和未渗氮套管的抗腐蚀性进行了比较。
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