... 5-10 years. 2,wpc deck 3,we make this mould more than 20 years. high quality wpc extrusion ... mold for deck1,this mould can used on outdoor for deck.2,the material ... whole support for customer to selection of extruder machine,mould technique and operation training on the sport.7,our ... technician will test each mould before them leave our company.8,over the ...