936| 2
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軌道焊接為何對(duì)鋁熱反應(yīng)情有獨(dú)鐘,? |
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點(diǎn)評(píng)
還有一種接觸焊,焊機(jī)比較復(fù)雜,,焊接質(zhì)量好,,適合工廠使用
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