Quanzhou Hengchang Electrical Appliance Co, Ltd.specialized in producing automotive appliances with a history of more than 10 years.  Our company is the earliest manufacturer of electric control automotive loudspeaker in the whole country with first-class producing equipment imported from the foreign countries. We carries out official automated management and computer control producing procedure based on the science and technology and talented people. Moreover, with the pioneering spirit, we keep strict quality test from raw material and production to packing of finished goods so as to be up to the standard of ISO9000 Quality Management System. The automotive electrical appliance series products, which are regard " YUMGREE " as the registered trademark, have been sold well around our country and Southeast Asia. With the output of more than five hundred thousand sets of electrical control double tone automotive loudspeaker as well as our leading products and our sale and maintenance nets in every big or middle cities, our company receives the high opinions form the customers both at home and abroad for the top quality and complete after-sale service. We are also awarded the " Patent Bureau and Recommended Commodity " honorary certificate issued by Consumer Committee. At recent years, our company is developing at unprecedented speed and making great contribution to the international automotive industry, which is marching toward to the outside market.