日韩欧美在线视频免费,黄色国产91,欧美日韩亚洲国产,最近中文字幕在线,性高爱久久久久久久久,亚洲精品午夜不卡,一区二区三区福利视频

Casus Products>> Casus

  The QS35C-C produced by XINGTAI STEEL has the advantages of stable composition, low harmful elements and few surface defects. This material is a special material for shaft and rod products. A customer used this material to make automobile piston rod. The customer reflected that the quality of our QS35C-C material is stable, and it has good surface quality and cutting performance, which meets the use requirements of the final product.