| We, Shijiazhuang Fortune Industrial & Trading Co., Ltd. manufacture steel pipes as follows: steel pipes SMLS/ERW/SAW Material specificatiom: API 5L grade B/ ASTM A53 grade B/ ASTM A106 grade B/ ASTM A333 grade 6(low termperature)/ ASTM A335 P5/P11/P22(high temperature)Wall thickness SCH.40-SCH.160 Galvanized steel pipes:Material specificatiom:TIS 276/277-2532 type2/ type4 BS 1387-1985 BS-L/BS-M/BS-H Stainless steel pipe SMLS/WELDED Material specificatiom:ASTM TP304/304L/316/316L Wall thickness SCH.10-SCH.160 |