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 120Cr produced by XINGTAI STEEL belongs to high carbon handmade tool steel with a very high carbon content, mainly used for manufacturing various tools, measuring tools, molds, cutting tools, etc. A customer of XINGTAI STEEL used this steel grade to produce files. The customer reported that the product has stable performance, high hardness, and good usage.