We are the leading manufacturer of rotary damper started business in 1992. We specialise in the production of toilet seat and hinges for more than 20 years. (PP/UF Toilet cover，Soft closing hinge，dampers，fittings）have a vast and diverse portfolio of services we offer which includes design, development, production and matching of your toilet seat cover to the soft closing function. We have a skilled and experienced technology team. All production process from purchasing of raw materials parts production, assembly, engineering, testing, factory shipments are in strict accordance with top stan dard of production technology and quality supervision.We have ISO9001 quality and ISO14001 environmental management system certification and all raw materials are in line with ROSH standards product 100% inspection and test in the production process and before storage, our company have a variety of testing equipment.