Located in China furniture manufacture base-Foshan city, Rhombus Industrial Co., Ltd. is a professional manufacturer specialized in develop & manufacture high quality mattresses, mattress springs, pocket spring, bonnell spring, bed base, etc. We had set up quality system from material input to products output as per ISO 9001-2000 Quality System, we also introduced advanced equipments and specialized technicians to serve our customer with high quality low price products with in-time delivery.