2" - 10" Outside Diameter Cold Rolled Pipe Round Black EN10305-1 E235 E355

Cold Drawn Precision Seamless Steel Tubes EN10305-1 E235 E355 Round Black Steel Pipes

Description

Our Seamless Steel Pipe are capable of making all of the following products :

Automobile and motorcycle Shock Absorber Pipe

Hydrau-cylinder Pipe

Mechanical steel pipes for auto and motor parts

Exhaust Pipe for Generator

Campanula Seamless Steel Pipe

Hydraulic System(Oil Pipeline, Motor Engine Pipe)

Bike and Bicycle Frame

Gas oil burner pipe

Auto and motor pipe fittings

Auto and Motorcycle Parts

Fuel injection Pipe, Oil flow pipeline

We adopt special techniques and special skills in the acid cleaning process to deal with the place where it is easy to form fold crevice,well organized process,especially annealing treatment in a severely technical manne,in respect with lubrication, we adopt the international advanced level treating process in the world, and put the surface quality of ourproducts under strict control in order to prevent causing surface crack.

Jiangsu Hongbao Group (Pipe) Co., Ltd. (Zhangjiagang Hongda Pipe Co., Ltd.) is a high-tech company in Jiangsu province. The company has a registered capital of RMB 89 million, covers an area of 130,000 square meters, employs 600 staff, and has annual sales of RMB 400 million. The company is specialized in producing and selling high-end bearing tubes, auto alloy tubes, titanium and titanium alloy tubes, nickel and nickel-based alloy tubes, refrigerator condenser tubes, aluminum and aluminum alloy tubes and the like.

The company focuses on the development of new products, and has successively developed high diameter-wall ratio titanium-molybdenum-nickel alloy seamless steel tubes, nuclear power plant reactor driving mechanism used martensite stainless steel seamless steel tubes, auto critical components used alloy steel tubes, high-end refrigerator used corrosion-resistance galvanized condenser tubes, marine engineering and complex environment oilfield used high-strength corrosion-resistance G3 tubes, among which, nuclear power plant reactor driving mechanism used martensite stainless steel seamless steel tube has obtained high-tech product certificate of the province.

At present, the company has obtained authorization for 7 patents for invention, and 8 patents for utility model.