2020년 7월 16일Published by steelmax on 2020년 7월 16일Categories Copper Alloy Non-Ferrous(비철)B61 C92200, Steam, Valve Bronze, Leaded, CastingB61 C92200, Steam, Valve Bronze, Leaded, Casting STEELMAX Metal Story ASTM B61 C92200 재질은 Leaded Bronze (鉛入靑銅)으로 쾌삭성질을 가지고, steam bronze 또는 valve bronze 라고 […]