11770| 39
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新產(chǎn)品,,焊接表面處理的很漂亮,,不知是哪種工藝 |
評(píng)分
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點(diǎn)評(píng)
贊同,,焊縫中間有凸起,,應(yīng)該是氣保焊,。氬焊中間是平的。
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