Shanghai Junhua Hightech Materials Co., Ltd. is a reliable cleaning sponge supplier with expertise in melamine, polyurethane, and wood pulp sponge materials. With products such as Polyurethane Sponge, Scouring Pad, Cellulose Sponge, and Melamine Sponge, Junhua provides practical cleaning solutions for stain removal, water absorption, and daily household use, supported by OEM and ODM service.