供应45号冷拉扁钢 45号无缝管

日本JIS标准结构用铸钢牌号:               

SC360 SC37 SC410 SC42 SC450 SC46 SC480 SC49 SC360 SC410 SC450 SC480 200-400 200-400W 230-450 230-450W 270-480W 340-550 340-550W SCW410 SCW42 SCW450 SCW46 SCW480 SCW49 SCW63 SCC3 SCC5 SCMn1 SCMn2 SCMn3 SCMn5 SCMnCr2 SCC3A SCC3B

瑞典SS标准,碳素结构钢:1211 1225 1226 1232 1233 1234 1250 1265 1300 1310 1311 1312 1313 1330 1331 1332 1350 1357 1370 1410 1411 1412 1413 1414 1421 1422 1423 1424 1430 1431 1432 1434 1435 1450 1500 1510 1550 1550 1572 1600 1650 1655 1660 1665 1672 1674 1678