English translation is in progress or not avaiable.

English translation is in progress or not avaiable.

English translation is in progress or not avaiable.

English translation is in progress or not avaiable.

Hunan Standard Steel Pipe Co.,Ltd owns 3 sets of hot -rolled seamless steel pipe production line and 2 sets of cold drawn seamless steel pipe production line with annual production capacity of 200,000 tons, the size range is from 73mm to 630mm. The continuous mandrel rolling process and