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英国联合工程公司(THE ASSOCIATED ENGINEERING GROUP)在发动机配件活塞环的研究取得新的进展,对活塞环表面进行碳氮共渗获得成功,这工艺适用于各种活塞
The ASSOCIATED ENGINEERING GROUP has made new progress in the research of piston rings for engine parts and succeeded in carbonitriding the surface of piston rings. The process is suitable for all kinds of pistons