How to choose a sofa: see the quality framework both hands around the whole sofa around, the force repeatedly shake, shake, if you feel better, indicating strong framework. Then consult with the sales staff, opened a cloth corner of the seat under the bottom view, if not rotten, no insects, no scars, without bark or wood hair smooth hardwood production, and material and not material convergence at nailed, but in mortise or carved mouth bite each other, then glue in prison, there is no problem. Look internal cushion quality Nowadays high-end sofa seat and the back of the bottom surface of the multi-use nylon belt and snake spring crossover knitting structure, layered bedding above the high elastic foam, Spewing, and lightweight foam. This cushion rebound well, ride comfort. Mid-range sofa more than plastic pressure fiberboard to the seat back and the floor above layered bedding medium density foam and Spewing. This sense of cushion to sit rigid, resilient little worse. See fabric, sewing Buy leather sofas to choose leather. Leather sofas into full leather sofas and a half leather sofas, each full leather sofas to consume the equivalent of 10 cattle leather, high value, breathable and environmental performance, Europe and other developed countries, the widespread use of full leather sofas. Half leather sofa sofa back, bottom and other hidden parts with PU leather or artificial leather PVC instead of leather, but direct contact with the body parts of the leather is still higher value, thereby reducing the cost of the sofa, more affordable. Yellow leather couch with leather into leather and water, according to the number of layers is divided into first layer, the second layer of skin, and three hides; by origin into domestic leather and imported leather. In Italy and Germany imported leather yellow leather quality imported first layer of the best, to meet stringent environmental requirements, color fastness, elasticity and good air permeability, high mechanical strength, especially tear strength and high tensile strength. High-quality leather sofa must be selected first layer of yellow leather. Optional leather sofas, the leather to luxurious shiny, no scars, lines and delicate texture fingertips to pinch an upward pull a drag, should feel flexible and powerful sit wrinkles by trimming back can disappear or is not obvious, such good leather is the finest leather. Should pay attention to buy fabric sofa, sofa seat, the back cover is preferably looper structure, high-grade cotton lining fabric sofa generally, other polluted sites should be able to wash. Sofa fabric should be relatively thick, its gram focuses on more durable 300 g / m² or more, and must ensure that the friction surface can not afford more than 12,000 times ball. Sofa fabric can be divided into domestic and imported, Europe and dedicated professional manufacturers of sofa fabric quality, minimal color, high color fastness, fabric no skew, especially in some high-end fabrics in order to improve anti-fouling ability, also conducted surface the special treatment. Imported high-grade fabric also has anti-static, flame retardant and other functions. To choose to buy fabric sofa fabric latitude and longitude lines fine smooth, no jump wire, no exposed joints, feel stretched Jin there. Is uniform sewing depends on pin straight, both hands firmly Pa seams to see if tight, side teeth child whether rounded fullness. Look to see whether the cloth bag cloth fabric firmly affixed to cover the internal filler, whether the formation of crisp, especially the two armrests and seat back junction for a very natural transition, no broken pleats. If it is circular and semi-circular handrails, depends on whether the arc at the sleek and smooth, plump appearance. Stitching the fabric look flower pattern or grid pattern with a flower-shaped if the same, whether the grid smooth vertical and horizontal, not tilted or twisted. Finally, sit down and try and feel the seat back angle, or if the back seat above radians with the waist, back, hip and hamstring four parts of the appropriate anastomosis; occipital with back height is appropriate, whether high or low armrest with two arm stretched natural open usually coincide; if ride comfort, starting immediately whether freely. Stand up and then look at the hip, back and armrests at the Ministry of fabrics there is an obvious and long recovery can not slack creases. Look foam sponge should be used to select high-end sofa cushion density 30 kg / cubic meter or more high-elastic foam sponge, back pad should be used density 25 kg / cubic meter or more high-elastic foam sponge. To improve the sitting and lying comfort, still some foam to ensure without reducing the density of the premise, do a soft handle, some vertical spring disposed within the cushion, so the sofa has a higher resiliency and aging. Under normal circumstances, the sofa cushion to sag about 10 cm of the human body is best to sit down.