... with First-Class in China.1.Standard hardboardSizes:1000*2000,1220*1830,1220*2440Normal thickness:2.0mm, ... 5.0mm.Advantage:non-formaldehyde.2.Cement hardboardSizes:1000*2000,1220*1830,1220*2440Normal thickness:2.0mm, ... formaldehyde<1mg/100g;better strength.3.Embossment hardboardSizes:1000*2000,1220*1830,1220*2440Normal thickness:2.0mm, ... ,3.2mm.Length:1800 to 2500; Width:1000 to 1220; thickness:2.0mm to 5. ...