Raws li peb cov neeg yuav tsum tau, peb txhab rau ntau yam ntawm cov ntaub ntawv peb alloy hlab xws li Cooper npib tsib xee cov ntaub ntawv uas. Nrog C70600 (CuNi 90/10), C71500 (CuNi 70/30), C71640 (CuNiFe66 / 30/2) thiab C44300, tam sim no peb tau ntse exported coj mus muag khoom rau Brazil, qhov kawg cov neeg siv yog ...
nyeem ntxiv