九一精品一区,色戒梁朝伟和汤唯无删减版在线观看未删减版,伊人中文字幕在线观看,亚洲男人在线,五月婷婷之婷婷,色戒完整版无删减在线观看,天堂成人一区二区三区

Casus Products>> Casus

  The Q10B23M-C produced by XINGTAI STEEL has the advantages of high purity, good surface quality, small depth of decarbonization layer, low cracking rate of cold heading, high strength and good hardenability after heat treatment. It is mainly used to make high-strength automobile fasteners. A customer of XINGTAI STEEL using the product to make automobile bolts, reflecting the product quality stability, meet the final product use requirements.