久爱伊人,亚洲天堂aaa,欧美三级电影网站,国内一级黄色毛片,aaa毛片在线观看,青青福利,在线中文天堂

Casus Products>> Casus

40CrMoV4-6 products of  Xingtai Steel is used to product in high strength and high temperature working environment,which used to automotive turbo system and exhaust pipe system bolt.The end user feedback that has heat resistance,good surface quality,good heat treatment and so on.This material was successfully applied to FAW Volkswagen, Chang an,FAIT and so on native and foreign famous automotive company.