... low and medium pressure boiler ,high pressure boil thick wall seamless steel pipe1) Standard:API 5L,ASTM 36.10M ... OD 1/8”to 48” (10.3mm-1219.2mm)4) Wall Thickness : 2mm to 60 mm5) Schedule: SCH5-160, STD ... , XS, XXS etc.6) Technique:Hot Rolled,Cold Drawn,Seamless,ERW,LSAW,SSAW,7) Surface treatment:bare,black ... ,power,shipbuilding,boiler,construction,,metallurgy,etc thick wall seamless steel pipe