3308| 6
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工件常溫發(fā)黑處理 |
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點(diǎn)評(píng)
恰到好處最好,涂布機(jī)你都發(fā)黑了,印刷機(jī)估計(jì)也是,但還是趕不上除銹后噴3道漆
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點(diǎn)評(píng)
噴砂到底能不能防銹?Q235噴砂之后顏色變白了,好像也沒(méi)見(jiàn)生銹
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