Shijiazhuang Longwei Petroleum Drill Tolls Co., Ltd. is a company that specially manufactures kinds of Petroleum Drill Pipe,Water Well Drill Pipe, Flat Drill Pipe,Geological Drill Pipe,Non-dig Drill Pipe,and Drill Pipe joint. In 2010 our company got the certification of API 5DP,which is the best authority certification in the oil drill pipes field.

主要产品/业务: Petroleum Drill Pipe,Water Well Drill Pipe, Flat Drill Pipe,Geological Drill Pipe,Non-dig Drill Pipe,and Drill Pipe joint