This product widely applies to the running water project, the petrified industry, the chemical industry, the electric power industry, the agricultural irrigation, the urban construction, is our country 90's developments one of 20 key products.
    Makes the hydraulic transport to use: For water, draining water.
    Makes the gas transfer to use: Coal gas, vapor, liquified petroleum gas.
    Makes the structure to use: Does cuts in line the tube, is the pillar of the state; The wharf, the path, the building structure use the tube.