... 3.Size:70x70mm,90x90mm,100x100mm,120x120mm 1200X1120mm Waterproof WPC Material for Garden Railing Sizes:70x70mm,90x90mm,100x100mm ... 60x40mm,75x22mm,90x40mm,100x16mm,115x10mm,100x50mm,120x70mmSinywon WPC railing & Fence series are designed with excellent and imaginative ... the advantages of wood and plasticProduction Process of WPC MaterialsRaw Materials→ Mixing →Making Granules→Shaping →Cooling ...