3066| 5
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這兩種都是什么焊接,?是電子束焊接或者電阻焊嗎? |
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點(diǎn)評(píng)
焊接標(biāo)注虛實(shí)側(cè)線 后分成倆 尾巴,, 后面用代號(hào) 表明焊接方式...
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