Dongguan Dalang Heights Spring Hardware Products Factory in Dongguan City, Guangdong Province for more than 13 years of professional production of spring manufacturers, production of spring include: compression springs, shaped springs, tension springs, torsion springs, compression springs office stationery, pens compression spring, stapler compression spring, mold compression spring, compression spring electronics, toys, compression springs, etc., precision compression springs. Spring is widely used in metal, electronics, toys, plastics, machinery, fitness equipment, vehicles, cars, trains, motorcycles, aircraft, ships, furniture, sofas, daily necessities, supermarkets, jewelry, clothing and so on. Spring can be used materials: stainless steel wire, wire, carbon steel wire, piano wire, copper wire. Spring surface treatment: electroplating, painting, heat treatment