The strategy of the implementation of the principle of flange blank play

　　The diameter of the steel pipe is determined by the diameter of the drill bit of the flange blank. The raw material of the rolling standard steel pipe is the round tube blank, which is about to be grown by the cutting machine. Normal rare excellent seamless pipe exposed. Thick walled seamless steel pipe, thick walled steel pipe, large diameter thick wall seamless steel pipe, small diameter thick wall seamless steel pipe, especially thick wall steel pipe. Is strong in the market, Pingzhang excellent competitive connection, the company has been robust stop area million hectares, spot trading District of the first batch of site four blocks closed room stores have been ready, simultaneous, public law LAN blank ares of the outdoor yard, hectares of the processing zone will gradually into use.