Cold drawn steel pipe is used for mechanical structure, hydraulic equipment, high dimensional accuracy and surface finish, good precision cold drawn seamless tube.Using precision seamless tube manufacture machinery structure or hydraulic equipment, etc., can greatly reduce the mechanical processing time, improve material utilization, and help to improve the product quality.
If got smaller size and better quality seamless tubes,must take cold-rolled, cold drawn or both methods. Cold rolled usually in two-roll mill, steel rolling in the ring pass a variable cross-section hole slot and fixed cone head. Cold drawing is usually in the 0.5 ~ 100T single chain or double chain drawing machine.