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Question:

Light steel keel cut off the keel and the ground with what fixed?

Light steel keel cut off the keel and the ground with what fixed?

Answer:

Expansion bolt or pad on a layer of blockboard (brush fire anti-corrosion coating) with 50 steel row nail directly on the ground
Generally just a few fixed points on it, because the gypsum board sealed, the formation of a whole, The weight is under pressure, it can not move.
Playing a good line, with 25 steel nails directly to the keel to the ground fixed, If the ground is too hard nails do not enter, use hammer to play the cork now, and then in the fixed keel.

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