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hfc87的头像-大连富泓机械有限公司hfc871个月前
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If you have worked in different roles or at different companies, you will have noticed that, for the same products and workpieces, some companies use pure CO₂ gas shielded welding, whilst others use a mixed gas shield.
hfc87的头像-大连富泓机械有限公司hfc871个月前
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