SPC flooring has a high proportion of stone powder in its substrate layer. Stone powder is highly rigid and has a very low coefficient of thermal expansion, effectively suppressing the slight thermal expansion and contraction that may occur in PVC resin itself. Therefore, SPC flooring maintains dimensional stability under both high and low temperature conditions, without warping, shrinkage, cracking, or other deformation problems, making it particularly suitable for installation in large-span spaces.
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