Characteristics of S420m-brand steel S420m steel is a fine-grain weldable structural steel that has been thermomechanically rolled. It conforms fully to the EN 10025-4/DSTU EN 10025-4 standard. ...ดูเพิ่มเติม
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S420M S420ML S420N S42NL Hot Rolled Steel Coil ASTM A572 Gr 60