发布时间:2025-02-09 06:58:01
合金钢的硬度耐磨性 淬透性 耐腐蚀性等比碳素钢优秀 在机械零件中应用比碳素钢要广,碳素钢的耐腐蚀性 和耐磨性普遍不好 所以一般都是用来做结构件,不适合做接触件,比如轴承 等
2024lt高性价比gt华凌空调推荐华凌15匹挂机3匹柜机选购全攻略7月版
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