Application：oil houses, gas stations, oil tankers, tank ships, docks, tank trucks and airports for the transfer of coal oil, diesel oil, aviation fuel and so on.
Application：water supply or drainage of high-rise building, fire control system, heating system, air-conditioning system, hotels, supermaket, office building, factories, industries and mining enterprises, munici
Application：industrial and cities’ water supply and drainage, high buildings’ booster water supply, gardens irrigation, fire-fighting booster, remote water supply,
