​1. The shape of the sofa. The appearance of the sofa should be full and well-proportioned, the height should be appropriate, the fabric should have no obvious color difference, and the pattern of the fabric with stripes, grids, etc. should be symmetrical. The fabric has no defects such as damage, stains, skipped stitches, etc. There are no skipped stitches or floating threads in the future. The exposed foam nails should be neatly arranged, and there should be no defects such as loosening, flattening, and peeling.



2. The wooden pieces of the wooden sofa. The wooden parts of the wooden sofa must not have cracks or looseness; the surface paint film coating is flat and smooth, the color is similar, and there is no paint film falling off.



3. The structural strength of the sofa. When purchasing, you can crank the armrest of the sofa and the backrest without shaking or looseness, touch the seat and back of the sofa with your hands, and press hard 2 to 3 times. The hand feels smooth, without spring friction, and the feeling of pressing pressure, It is estimated whether the sofa seat surface can sustain the pressure of the human body for a long time.