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Question:

Large area gypsum board light with no blockboard solid

Large area gypsum board light with no blockboard solid

Answer:

House interior wallboard, ceiling. All the panels are inside the gypsum board. Generally 12 mm thick, the surface is paper. There are very few glass fibers in the middle. It is fireproof moisture absorption sound insulation, is very good building materials. Used for decades to the present.
It is only nails or screws fixed on the wooden frame or metal shelves above. Safe and secure.

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