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  • Users: opendoor
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  1. opendoor

    SMAW weld vertical down

    I use smaw welding vertical down. The molten metal run ahead of the welding stick, what should i do? Thank you for reply.
  2. opendoor

    air carbon arc cutting

    (1)when i search by google for 'air carbon arc cutting,polarity', some article said DCSP, some said DCRP.Which one is right? (2)How long can the ACA electorde extend at most beyond the holder?Some said 6 inches, some said 7 inches, which one is right? Thank you so much for reply.
  3. opendoor

    alloy percentage of the electrode and base metal

    hello everyone, i am a new guy here. Two questions, (1)Regarding alloy percentage of the electrode and base metal,which one should be higher? (2)What determine the color of the spark test of the ferrous material?

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