4335| 5
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如何去除灰鐵鑄造中的硫和磷? |
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點(diǎn)評(píng)
哈哈,說(shuō)不上高手,過(guò)獎(jiǎng)了,磷高了,主要影響使用,一些突發(fā)事故都是這么造成的,阿拉對(duì)這個(gè)特別在意,低溫部件,阿拉對(duì)這個(gè)特別嚴(yán)格,無(wú)論誰(shuí)說(shuō)什么,
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