390-1300MPa grade high-strength construction machinery steel Steel para sa construction machinery ay hindi lamang medyo mataas ang lakas, ngunit mayroon ding mataas na wear resistance, ductility at mahusay na weld-ability.Pangunahing materyal: LG600, LG700, LG700T, LG600T, LG700QT, LG900QT, LG960QT, LG1100QT, LG1300QT.(Para...
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