Jun 15, · Black White HDPE Sheet m 4 5-10mm Polyethylene Engineering Plastic Panel Plate. Specification: Material: HDPE Thickness: m/4mm/5mm/6mm/10mm lor: White or Black Size: 390*290mm A4(297*210mm) 500*300mm 100cmx35mm 250*250mm 200*150mm Features: 100% Brand new and high quality.