WYO (We are Your guarantee of Quality) The registered trademarkmeans that we are the guarantee of your quality. Zhongshan City ChangYinElectronic Appliance Co., Ltd. Was founded in 2007, formerly known ASA proxy service company of semiconductor products, and now we are acomprehensive enterprise with diode products sales and service andconsideration of production and research and development. Customersfocus on lighting, power supply, household appliances, consumer autoaccessories and photovoltaic solar energy peripheral products such aselectrical industry, we focus on the customer's product application anddevelopment, customer to customer demand to improve the servicefunction and the product quality of the enterprise.Production base is located in Jiangsu, Changzhou and Suzhou, havepassed the ISO9001 quality management system certification andISO14001 environmental management system certification.We focus on products and services customers, continuous improvementand progress, integrity and win-win, create value is our businessphilosophy!