The PLA(People' s Liberation Army) 7431 factory , (Guangdong Yunshan Battery, Guangdong Yunshan Automobile Factory ),is a state-owned military enterprise belonging to the Equipment Department of Guangzhou Military Command .It covers an area of 200000and is located in Guangzhou City ,Guangdong Province ,the forefront of china's opening-up and reform . It is a second-rate state-own enterprise and a first-rate military enterise. The factory was established in 1970 and has a history of tens years' experiences in producing storage battery . The factory's quality guideline is : Regarding quality as eternal motif , persisting in following the approach with science and technology in the lead ,optimizing overall internal management ,providing all kinds of best service ,occupying the market with famous brands and winning the customers' acknowledgement with quality and sincerity .The products are distributed national wide ,not only used to equip the military vehicles but also exported to South east Asia\ Africa\Middle east\Latin America and Europe , and have hence been widely acclaimed in the market. Modern Enterprise Systems is widely used in all courses of production , and the battery production follows the National Standard GB5008-91 and the Military Standard GJB516A-95 , which passed ISO9001:2000 Quality System in 2001. The storage battery and the Solar series have been graded many times as the high-quality military products . The enterprise boasts strong technical force and advanced management standards . It has won many times the National Military Science and Technology progress Award as well as the Excellent Quality Control Award of Guangdong province . The factory has been appraised as one of the advanced enterprises of Guangdong province. Our objective is : to provide the best service to the customers by always sticking to the principle of "Quality First , Reputation First