... ,decoration,machinary furniture,automobile,industry instrument,agriculture,etc.Seamless Steel PipeCr5Mo, Cr9Mo, 15CrMo, 35CrMo, 12Cr1MoV, 10CrMo910, A335P11 ... Steel Pipe300 SeriesGB,JIS,ASTM, DIN6-720mm, 0.5-65mmWidely used in made mechamical parts and engeenering structures ... ,producing all kinds of conventional weapons:the barrel, shells and so on.Structural Steel PipeCr5Mo, ...