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In general, composite decking materials are dimen sionally stable, resistant to the elements, Older versions of PVC decking were made from hollow extrusions similar in profile to a vinyl window frame. Most products now have a solid core of cellular PVC
Shanghai Seven Trust Industry Co., Ltd, founded in the year 2008, is a hi-tech enterprise which specializes in the R&D, sales, and service of WPC materials, Provide excellent products, professional technology and sincere service.