Longwell foam dedicated in research and develop polyurethane sponge for decades,we strictly control the quality of PU foam products from the foaming lines,shape cutting,grinding,drilling,vacuum packing,and other process;we have sponge performance testing equipment,each batch of foam sponge is inspected for physical properties in the factory to ensure that the delivered sponge fully meets our quality specifications and meets all the requirements of our customers.



Also we set up PU foam Independent laboratory, perfect experimental equipment, to do special sponge formula,color matching, at the same time we can improve the performance of the sponge sample foam test,then we can control our PU foam quality better and better.