... , anti-erosion, easy operation, its main use :Blowing oxygen or other gas into EAF; Injection of powder additive to ... outside + calorizing inside and outsidePipe materialCarbon Steel Pipe (both welded & seamless available)Pipe diameter3/4” ~ 4” according to client’ ... Baosteel, Anshan steel, Guangzhou steel,Posco(ZJG Plant).Anssen pipe material data sheetChemical properties : Steel gradeStandardC Mn Si ...