... .: ASTM A511 STAINLESS STEEL HOLLOW BARS GRADE: 304/L, 316/LSPEC.: ASTM A511 PRODUCTION EQUIPMENT 18M vacuum annealing furnace, ... LG-150,LG-60 Primary pilger machine,LD-60,LD-30,LD-40,LD-15 type cold worked pilger rolling setsLG ... testMachanical propertyUT test stainless steel seamless hollow bar A511 304/L 316/L