... Own factory. c) pass SGS,ROHS,test. High density PU foam:PU foam Sponge factory,our company mainly produce the natural sponge ... straining, cleaning and others.Feature:(1) Material: Sponge,foam,PU. It is an environmental protection material.(2) Any ... be produced.(3) various colors.(4) different density and shapes can be produced according your drawing ... packed into durable fiber bags. High density PU foam