tubular steel bars,mild steel round bar

  Product Description   description: Ball screw is made of screw, nut and ball . Its function is to turn the rotary motion into linear motion, which is a further extension and development of ball screw. The significance of this development is to move into a rolling bearing from sliding action. With little friction, ball screws are widely used in various industrial equipment and precision instruments.   1. material: HRB400, HRB500, BS4449, ASTM A615                 2. Size: 6-40mm                                                                                                                                                      3. Length: 6-12m or as customer require       Company Information               Our Services   Our company regards "Reputation First, Mutual Benefit, and Faithful Cooperation". With professional skills and efficient service, we hope to cooperate with more customers for mutual development and benefits. We welcome potential buyers to contact me, Alice.li Tel: 0086-315-2332225 Fax: 0086-315-2332225 Mobile:0086-13582555229 Skype:li.alice86