1、Seatsurface and handrail surface are covered with shell fabric,the back of chair is environmental-friendly leader.(can change to domastic leader,import leader and ultra filament imitates skin). The others part cover with thick imitation leader. Fabric colour and size can be changed. 2、Wooden support made by birch,oak,northest China ash,pine and so of them must be sure not only dried and hard but also no board, its water content must be steady with high quality. 3、The sofa made by high quality spring,leahter line,fabric fiber, sponge,nonwovens,seat frame fabric and so on. 4、Sponge:High density and elasticity sponge, no distortion and wear well. Cushion sponge density is 35-45 KG,back and arm rest sponge density is 20-35 KG. 5、 Back of chair and throw pillow full fill with elasticity doll cotton or eiderdown. 6、 Sofa feet: The material contain wooden,stainless stell,iron and so colour and size can be changed for custumer’s reference . 7、 The products are up to