(1) When the ultra-high pressure washer is working, the hose must not be twisted, and try to avoid bending. If bending is necessary, ensure that the bending radius is not too small, generally not less than 15 times the outer diameter of the pipe, otherwise the outer steel wire of the reinforcement layer will be stretched and the inner steel wire will be compressed, thereby reducing the entire ultra-high pressure hose. Compressive strength, which ultimately affects the service life of the hose. (2) When the ultra-high pressure washer is in working state, the ultra-high pressure hose cannot be crushed…