... #, 15CrMo, 12Cr1MoV, 10CrMo9 Standard: BS 1387, GB 5310-1995 Hot Rolled Seamless Steel PipeCarbon steel; Stainless steel;Alloy steel boiler tube ... ASTM,AISI,SAE:1020BS:050A20,060A20 TechniqueHot Rolled and Cold DrowingSurface treatmentTransparent oil or black painting anti-corrosionPlace of originTianjinStandardBS, JIS, ... /T17396-199870-377*9-40Hydraulic support and prop Hot Rolled Seamless Steel Pipe