중국해당 없음 제조 / 공급 업체,제공 품질 ASTM 1020 1018 1035 1045 Ck45 S45c Steel Carbon Round Bar, ASTM St37 AISI 1035 1040 C45 Q195 Q215 Q235 Q345 for Structure Steel Round Bar, Cold Drawn Steel Square 1215 12L14 Q235 Sj235 4140 4135 8620 Sj275 Q355 11smn30 11smnpb30 Round Bar 등등.