Plastic rubber board 　 　 　　 Planking(1.1m,1m wide) Thickness 10mm 15mm 20mm 25mm 30mm m/piece 20m 20m 10m 10m 10m   Notes: 1.The above specifications are those in common use ; special specifications are available on customer request. 2.Planking and tubing are normally in black. Other colors are available on customer request. 3.It is recommended to use planking where outer diameter of tubing exceeds 89mm. 4.Multilayer packing is recommended where the thickness of heat insulation materials needs to be greater than 25mm.