For RENAULT Series , using high quality of Electronic Components imported , and the best competitive price . And all the Circiut Board will be made in our mondernized Dust-Free room , and also we will use the newly welding technology to make sure each part will work well. All products will be tested by three steps serperately before delivery , and only after all test result shhowes the good conditon and the goods can be moved to warehouse for packing , and also we will test all products in our high --low temperarure machine to make sure all products can work well in different district !