日本中出在线观看,日韩亚洲精品视频,欧美成人三级精品,一区二三区视频电影,日本伊人色综合网,三级全黄的视频在线观看,三级全黄的视频在线观看

Casus Products>> Casus

The 40CrMoV material  produced by XINGTAI IRON AND STEEL CORP.,LTD is newly developed high strength and high temperature resistant alloy steel,and it is mainly used for production of eddy current for high temperature bolts in the engine.The material is used in passenger cars and engineer mechanical cars.Customers reflect that 40CrMoV   has the very high strength and good heat stability at the same time.