Tianjin Dalipu Oil Country Tubular Goods Co., Ltd is a rising domestic producing and marketing enterprise of Casing and Tubing at present. Our company mainly produces API 5CT oil casing and API 5L oil line pipe with organic combination of production and sales. ....

As we all know, the seamless steel pipe is mainly for transporting all kinds of gas and liquid. So the seamless pipe don't allow any cutting and welding. It will cause missing with cutting or welding in the transport.Of course, the quality of the seamless steal pipe should be qualified, otherwise it will cause a lot of unnecessary trouble....

Oil Casing and tubing is a important equipment for oil drilling, its main equipment also include a core drill pipe, casing, pipe, drill collar and small caliber drilling pipe. Domestic casing is made of geological drilling steel after hot rolling and cold drawing , the number of steel expressing by geological" ( DZ ), commonly used in the grade of steel DZ40, DZ55, DZ753...

Drill Pipe is hollow, thick-walled, steel piping that is used on drilling rigs to facilitate the drilling of a well bore and comes in a variety of sizes, strengths, and weights but are typically 30 to 33 feet in length...

Galvanized steel pipe is divided into cold galvanized pipe and hot galvanized pipe, the former has been forbidden, the latter is also the national advocate for temporary use. In sixty or seventy, the developed countries began the development of new pipe material, and have to forbid the galvanized pipe...

The United States Department of Commerce announced in February 24, 2010 preliminary decision, the seamless steel pipe imported from China collection from 11.06% to 12.97% ranging from countervailing duties. The United States Department of Commerce said in a statement, from 2006 to 2008, the United States imports of seamless steel pipes from China increased by 131.52%, amount to about $382000000...