少妇精品无码无码专区_浪伦女视频免费在线观看_在线看片无码午夜免费_五月丁香婷婷在线观看视频

Casus Products>> Casus

  The 30CrMnTi produced by XINGTAI STEEL has the advantages of stable composition, low harmful elements and few surface defects. By controlling the chemical composition and optimizing the rolling process, the product has excellent hardenability. A Southern customer of Xinggang used this product to make bicycle chains,who shows that the product quality can fully meet the needs of users and has won the unanimous praise of customers.