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Question:

Light steel keel ceiling screw length has a standard requirement no?

Now there is a theater decoration, ceiling no steel structure maintenance rack, ceiling ceiling height of 5 meters, Party asked directly with screw rod hanging, but the screw is not 5m long, there is no specification requirements, the maximum length of the screw can not exceed

Answer:

I can do with the joints I do hanging ceiling I did 8 meters of nothing
Can be knotted or welded

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