2018년 8월 28일Categories Copper Alloy Non-Ferrous(비철)CAC604, LBC4, High Lead Bronze, Cu-Sn-PbCAC604, LBC4, High Lead Bronze, Cu-Sn-Pb STEELMAX Metal Story CAC604 는 Currently Symbol, LBC4 는 Old Symbol 로, Lead (Pb)가 nominal 15% 합금 […]