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标题：碳钢

vily

等级:Senior
文章:647
积分:4865
门派:zhangjiagang
注册:2007-3-12 10:55:13

碳钢
高碳钢--含碳量一般大于0.60%。此类钢一般不用于制造钢管

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If you shed tears when you miss the sun, you also miss the stars.

发表于：07-10-19 10:03:51