WPC door board plastic extruder. 1.application:decking,floor,door board. 2.field:decoration,outdoor,indoor. 3.CE,ISO9001,etc. WPC Door Board Plastic Extruder ... edge banding,door frame,window jamp,columm profile,stair handrail,floor board,decoration panel,furnuture,etc. Proper double screw extruder and single ...