... 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 ... ERW,LSAW,SSAW,7) Surface treatment:bare,black painting,anti rust oil,hot dipped galvanized,3pe,etc8) Length: 5 ... ,power,shipbuilding,boiler,construction,,metallurgy,etc thick wall seamless steel pipe