1.Structural Seamless Steel Tube (GB/T8162-1999) are for general structure and the mechanical structure of the seamless steel pipe.
2.Fluid with seamless steel pipe (GB/T8163-1999) are used for conveying water, oil, gas and other fluids in general seamless steel tubes.
3.Low Medium Pressure Boiler Seamless Steel Tube (GB3087-1999) are used in the manufacture of various structural low and medium pressure boiler superheated steam pipes, boiling water pipes and superheated steam locomotive boiler tubes, opium pipe, tobacco pipe and a small brick arch effective high-quality carbon structural steel hot-rolled and cold-drawn (rolled) seamless steel pipe
4.High-pressure boiler seamless steel pipe (GB5310-1995) are used in the manufacture of high-pressure and over pressure water tube boiler heating surface with high-quality carbon steel, alloy steel and heat-resistant stainless steel seamless steel pipe.
5.Fertilizer equipment with high pressure seamless steel pipe(GB6479-86) are applicable to the work temperature -40 ~ 400 ℃, working pressure of 10 ~ 30Ma chemical equipment and pipeline quality carbon structural steel and alloy steel seamless steel pipe.
6.Petroleum Cracking Seamless Steel Tubes (GB9948-88) are applicable to the oil refinery furnace tubes, heat exchangers and pipe seamless steel pipe.
7.Geological Drilling Pipe(YB235-70) for the geological departments of the steel pipe used to drill cores, by end-use can be divided into the drill pipe, drill collar, core tubes, casing tubes, etc. and sediments.
8.Diamond core drilling with seamless steel pipe (GB3423-82) are used for diamond core drilling drill, core rod, casing of seamless steel tubes.
9.Oil drilling pipe (YB528-65) are used for oil drilling at both ends within the thickening or thickening of the seamless steel pipe outside. Steel tube sub-car wire and wire the two cars, car wire connector useful links, not cars welded wire effective methods and tools for joint connection.
10.Ship carbon steel seamless pipe(GB5213-85) is to create a ship I level pressure piping, Ⅱ grade pressure piping, boilers, and overheating of the carbon steel seamless steel pipe transparencies. Carbon steel seamless steel pipe wall temperature does not exceed 450 ℃, alloy steel seamless steel pipe wall temperature exceeds the work of 450 ℃.
11.Automobile axle casing with seamless steel pipe (GB3088-82) are manufacturing automobile axle casing and drive shaft Bridge shell effective quality carbon structural steel and alloy structural steel hot-rolled seamless steel tubes.
12.Diesel engine with high pressure oil pipe(GB3093-86) is to create effective high-pressure diesel injection system of cold-drawn seamless steel tub