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dongxiao1

新虫 (初入文坛)

[求助] IF 钢是什么牌号 已有1人参与

哪个国家的 成分怎么样  国内有没有类似的牌号
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rain080826

铁虫 (初入文坛)

【答案】应助回帖

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likedong1021: 应助指数+1, 感谢回帖交流! 2014-09-09 13:54:49
dongxiao1(红舟流星代发): 金币+5, 代扣代发金币 2015-02-06 00:33:01
IF钢又称无间隙原子钢,要求钢中固溶态的C+N含量很低。可以根据钢中C含量来划分IF钢。DC04以上级别的就可以达到IF钢要求了。
强大自己才是王道!
2楼2014-09-09 11:39:03
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