Applicable to electronic and electrical appliances, wires and cables, hardware Electromechanical, electromagnetic machinery, auto parts, power machinery, viscose chemical industry, building doors and windows, plastic weaving, spring manufacturing, medical equipment, fire-fighting equipment, printing and packaging, razor industry, fishing gear aviation, zipper buttons, textile and clothing, coal, furniture, elevators, lighters and ignition devices, locks, pens Electric power and other industries,