| 摘要 |
They are described the components of sofas, which are formed from lower layer of non-woven fabric with a density of 40 g/m2, a layer of polyurethane or a layer of polyurethane sticks or crumb or crumb from feathers, further transfering layer from non-woven fabric with a density of 12 g/m2, a layer of polyester clip from hollow fibers or sphere or polyester fleece or feathers and the top layer from non-woven fabric with a density of 40 g/m2. All those layers are stitched together to form squares or rectangles. |
