Answer: (1) The nozzle should be and sharply angled, an […]
(1) The nozzle should be and sharply angled, and the nozzle should be made into a flare.
(2) After the cable tube is bent, there should be no cracks and significant concave sag, and the degree of bending should not be greater than 10% of the outer diameter of the tube; the bending radius of the cable tube should not be less than the minimum allowable bending radius of the cable to be penetrated. .
(3) Metal pipes shall be coated with anti-corrosive paint or leaching sheet on the outside, and the galvanized pipe shall be coated with anti-corrosive paint.