DONSEN is professional pipe & fitting supplier. Established in 1996, Donsen mainly produces PP-R pipe fittings and plastic molds. Production range includes PP-R pipe & fitting, PP compression fitting and CPVC pipe & fitting, U-PVC pipe & fitting, PE-RT floor heating pipe fittings and all kind of plastic ball valve, piping systems of pressure and hot water (heating) distribution ,radiator for heating ,brass fitting and heater for heating valve ,all kinds of plastic and metal moulds for water (heating) distribution systems.