1) Type: ERW 2) Material: Q195, Q215, Q235, Q345, X52, X60 STK500, or per the buyers demand. 3) Standards: ANSI,ASME, A Detailed Product Information Description Shanghai Yuying Machinery Technology Co.,Ltd is the membership of supplier’s network of both CNPC Material Equipment Corporation and Sinopec Material & Equipment Corporation. and one of best network supplier for drilling tools amd ...