S15c non-alloy hot-rolled steel in irregularly wound coils, cross section of smooth d9.00mm.�t / c jis g4051, c = 0.14%, making materials for manufacturing mechanical steel. (tcvn 1766: 1975) 100% 98391000
S40c steel bar is not hot-rolled hot rolled coils, irregular cross section d12.00mm.�t / c jis g4051, c = 0.41%, making materials for manufacturing mechanical steel. (tcvn 1766: 1975) 100% 98391000