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 | [求助] 压铸件产品抛丸2次,拿到手里触摸有一层黑灰,怎样处理... | 
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| 专业生产高端抛丸机 | |
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| 压铸件,冲压件,CNC,电脑配件,五金配件去毛刺抛光清洗设备 18968682082赖军 | |
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