6938| 3
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白(黑)塞鋼 是什么材料 |
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點(diǎn)評(píng)
嗯,。去百度百科或者網(wǎng)上搜素下應(yīng)該大把POM的描述,。沒用過所以不敢論發(fā)表意見
好像就是這種材料
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