高潮喷水一区二区三区,色欲av蜜臀av久久久久久蜜桃,91精产,wwwww.国产

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.