Liaocheng dongfang steel pipe sales trade center responsible for production and sales of seamless steel pipe.We product all kinds of seamless steel pipe such as 51-630mm,2-80mm of the wall thickness.The material quality is 10#.20#.35#.45#.29CrMo44.26CrMo44.30CrMo44 and so on,pipe for oil pipeline is P110.N80.K55 and so on.