Product Description : ERW Steel Tube, ERW Steel Pipe; Mild Steel Tube, Mild Steel Pipes Construction used steel pipe, funiture used steel tube, body excercised used pipes, precision pipes Product origin : Made In China Key Specifications/Special Features : Standard: GB/T 13793-2008, JIS G3445, DIN2393, ISO3305, BS1387, EN10305, AS1163, ASTM A500, ASTMA53,BS1387-1985,GB/T3091-2001,EN39,BS1139 Material: Q195 Grade B, SS330,SPHC, S185 Q215 Grade C,CS Type B,SS330, SPHC Q235 Grade D,SS400,S235JR,S235JO,S235J2, Q345 SS500,ST52 SIZE ROUND 10mm to 168mm; 1/4"-18" SQUARE 12*12mm to 400*400mm RECTANGULAR 10*20--400*200mm OVAL 16*32-88*144mm ELLIPTIC pt9.5*17--pt62*212 Others DRUM,WATER DTIPPONG, BZ,Dd.BJ,DJ,DR,SJ Surface Treatment: Black,Bright,Galvanized, Painted,Power coated Packing: A. With steel belt in bundle; B. Oiled and packing by steel belt C. Oiled with PVC film or waterproof plastic bags Certificate: SGS, TUV SUD, BV, ISO9001-2008