Double Well provides professional solutions concerning industrial hoses and couplings as well as industries pipe fittings and valves for industry, located in north of China. Our main products include hose couplings ( Camlock coupling,Air hose coupling, Bauer coupling), fire fighting couplings ( Stroz coupling, Guillenmin couplings, John Morris couplings, Machino coupling, Barcelona coupling Forestcouplings, fire nozzles), pipe fittings(stainless steel pipe fittings, malleableiron pipe fittings, flanges, sanitary pipe fittings) and valves ( ball valve,gate valve, sanitary butterfly valve ) and so on.