Oupin Lao Yang sofa was exported to Europe and North America before. These sofas are made according to international standards and the materials are carefully selected. The interior adopts solid wood frame, and the normal service life can reach 15 years. The cushion is made of S-spring+spring bag+sponge, so it is very comfortable to sit. The springs used are all first-class alloy spring steel wires with good elasticity, high strength and long service life.