Hoses are essential components in modern industry. They are primarily used as protective conduits for wires, cables, and automated instrumentation signals, as well as for residential shower hoses, with diameters ranging from 3 mm to 150 mm. Small-diameter hoses (inner diameter 3 mm–25 mm) are mainly employed to protect the sensing circuits of precision optical scales and industrial sensor wiring.

　　By application, they are mainly classified into: wiring conduits, drainage hoses, ventilation hoses, shower hoses, and wire harness tubes.

　　By material, they are mainly classified into: stainless steel hoses, metal hoses, corrugated hoses, rubber hoses, and plastic hoses.