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Wood-plastic Composite - Wikipedia
WPC sandwich boards consist of wood polymer composite skins and usually low-density polymer core which leads to a very effective increase of panel's rigidity. WPC sandwich boards are used mainly in automotive, transportation and building applications, but furniture applications are also being developed. 
SPC Rigid Core Luxury Vinyl Flooring
The meat of both WPC flooring and rigid core flooring is the waterproof core. In WPC flooring, this is made from wood plastic composite, while with SPC, it is made from stone plastic composite. The stone is stiffer, sturdier and less resilient. Imagine WPC flooring as …
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