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When the hose is in contact with moisture, the storage operation will preserve the water in the hose. There is also a pungent smell, the remaining water drops evaporate with the sun, and it is easy to use paint for a long time in the water pipe. The pressure of the coated hose should be higher than 0.6mpa, the surface should be smooth and flat, and the wire should not be broken. Distortion, distortion, internal and external gaps, pores and other defects, impurities in the coating clamp. The hose material is made of 20 cylindrical chemical fiber polyester threads, the thickness must be greater than 1.5 mm, and small deviations are not allowed.