... ,SS4001.8-12mm,1250/1500mmWidely used in light industry,decoration,machinary furniture,automobile,industry instrument,agriculture,etc.Seamless Steel PipeCr5Mo, Cr9Mo, 15CrMo ... so onGB, ASME10-1400mm, 0.5-200mmWidely used in ship,liquid service,ptroleum craking,chemical fertilizer equipment,high pressure boiler,low & mid-pressure ...