bjtaoyi
铸铁的种类及性能 - 铁艺护栏
按不锈钢使用状态的金相组织，可分为铁素体、马氏体、奥氏体、铁素体加奥氏体和 ... 蠕墨铸铁的强度接近于球墨铸铁，并具有一定的韧性和较高的耐磨性；同时又有灰 ...
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