... plastic (PVC/PP/PE) and plant fiber filling (wood flour and other fiber: rice chaff, straw staff, ... main material, the product of which is ------“wood plastic composite”, hereinafter called “WPC”.1 WPC substitute ... mixer ↓ WPC granule extrusion line ↓ PP PE wood-plastic production line↓ finished product↓hot stamping/roller coating ... 1.5*2.25146kw3SJ90/28 PVC/PP/PE wood-plastic profile line 122*1.5*2. ...