ningbo sierwo sanitary ware co. , ltd. was founded in 2007, is to provide high-end sanitary products r & d, production, sales and service of professional brands. the company is china pvc health faucets manufacturers and oem pvc health faucet factory.we have shower, shattaf, plastic faucet, sanitary ware kitchen hose four categories of production base, and committed to provide customers with health, environmental <...