CDL is a kind of multi power products, can transport from the water tothe various industrial liquid medium to at different temperature, flowand pressure range of 0.1, water supply: water filter and transport,waterworks, in charge of pressurized and fire control system. 3,industrial liquid conveying: cooling and air-conditioning system, boilerfeed water and condensate systems, machine matching acid and alkaline,water treatment: ultrafiltration system, RO system, distillation system,separator, swimming pool. Irrigation: irrigation, drip irrigation.