... 36,48,50mm Size: 920*2150 Mfr. in China. MGO foam board Specifications: 1) Thickness: 25mm, 36mm, 48mm, 50mm 2) ... 1) Light weight, fire retardant and self-extinguishing, thermal insulation, soundproof and sound absorption, mould proofing, damp proof, waterproof ... the substitution of wood Applications: 1) Advertising field: sign board, billboard, exhibition display, silk screen printing, laser engraving ...