Sino Poland Metal & Mineral Products Co.Ltd is one joint venture between China and Poland, Since its establishment in 1998, it mainly focus on the expoiting of mineral Products such as iron ore,....
Cangzhou Spiral Steel Pipe Co., ltd is professional carbon spiral steel pipe manufacturer (zhangli greentea55(at)yahoo(dot)com) with a history of 14 years and its annual output is 160, 000 tons of....
Hebei Zhankui Drilling Equipment Co., LTD supplies Tricone bits ( new and renew ) , PDC bits , drill pipe , drill collar and the long diameter bits and so on for petroleum & gas , water well , mining....