Shenzhen Shengruifeng Technology Co., Ltd., founded in 2010, is a high technology corporation which is specialized in the R&D, production, sale and service of car audio & video electronic products. Now, in order to expand our business. Our company has experienced R&D experts, with the most advanced and complete production testing equipment. Since our company was founded, our R&D production capacity, order quantity and product market share have steadily increased. Our products had been sold to ...