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請(qǐng)教,,這種銅套上面的石墨點(diǎn)是怎么加工的,? |
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點(diǎn)評(píng)
這類(lèi)小廠子我基本都去過(guò)了,,做一個(gè)大項(xiàng)目,,一路走,哪里都看,,走到哪里,,人家都請(qǐng)你去參觀,為了買(mǎi)他產(chǎn)品,,包括各種離奇古怪的生產(chǎn),,我都親眼見(jiàn)過(guò),小鼻子的一米直徑大油港,,送加拿大去修,,我都看過(guò),哈哈,,
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