February 24, 2017
DIN 17172 STE210.7 STE240.7,STE290.7 seamless steel tubes/steel pipes usually are untreated, after a hot forming operation by rolling, pressing or drawing, on condition that said hot forming operation achieves an irreproachable structure condition with adequate uniformity without any further treatment.STE210.7 STE240.7,STE290.7 seamless steel tubes produced by cold rolled or cold […]