Rockhan has in excess of 20 years experienced as a specialist designer, manufacturer, & distributor of civil products, pipeline system products, water heater parts, plastic and rubber products. Rockhan factory covers an area of 16100m2 and is located in the economic and technological development zone of Bazhou city, Hebei province. Within a radius of 100 kilometers, there are Beijing airport, Tianjin airport and Tianjin seaport. The transportation facilitates extremely. With continuous improving and innovating, our full range of high level products and engineering service are successfully applied in worldwide relevant industry and complimented by customers.