20mm waterproof pvc foam sheet. 1)Feather light, non-absorbent 2)fire ... boards2) Building: models, partitions, wall cladding, indoor or outdoor decoration, air conditioning ducts, windows and false ceilings3) Industrial use: ... environments, ducts.Specifications:1) Thickness: 1--20mm2) Standard sheet: 1,220 x 2,440mm,1,560 x 3, ... 0086-531-83238988Fax: 0086-531-83260439 20mm waterproof pvc foam sheet