... , SIMENS, RKC The only professional manufacturer in WPC construction formwork extrusion line in China1.SJSZ 80/156 Conical twin Screw ... boards’, ‘Calcium boards’, ‘WPC shuttering boards’ ‘WPC MDF boards’, WPC Plates, PVC foam boards, WPC sheets, WPC panels, WPC formwork panels etc. in global ... - Flammability ¡V Self Extinguishing- Nil Formaldehyde & TVOC WPC construction formwork extrusion line