The first is to buy skills face. When you identify a brand or a certain car models, the first thing, of course, is the appearance of the problem. Process and the level of paint, a direct impact on both the car at first feel. Paint materials containing primer, paint and varnish. Different brands of paint directly affect the final results. Of course we have no way of knowing the specific use of the vehicle paint brand car in the election, but we can judge the quality of the paint according to the paint effect. Good paint, transparent surface light, natural color and deep, there should be uneven color, color and large pits or bumps blocks. Applique process smooth, uniform paint coverage. Under the sun, paint colors bright color, shade, paint color, rich texture. These descriptions if you find it hard to understand, the easiest way is to take a few shops, a lot of cars of the same color contrast electric car sales companies, feeling out soon. And most important thing is to consider baking UV resistance, many cars did not add UV paint formulations, the car after a long sun, will gradually fade, especially white paint, fading or discoloration of more problems. Because of these problems can not judge immediately show car dealers can observe whether there is bleaching, make a basic assessment. Electric car fault diagnosis are the following nine direction: 7) Under what circumstances should it replace battery battery problems many reasons, but in addition to drum kits, "off the powder," off the grid plate, short circuit, shell damage, etc., but? generally without replacement, as long as you can continue to use the service. Bulge is due to excessive battery charging, the battery has been deformed drum kit, consumers can feel touch; casing damage can also be visual. "Off the powder," off the grid plate and short circuit, you need to open the battery before we can see if these two grounds maintenance contractors to propose replacement, consumers can make service providers on the spot to open the battery checked. The so-called trade-only plus point repair solution 8) how to identify old batteries? Joints to see if there are traces of welding or used motor vehicle sales report, you can also see the latest 2014 housing is clean electric car sales, refurbished old batteries, always leave Used clues. Also, check the new battery when the new battery package to be traded electric car sales, better check yourself before unpacking. In front of the electric car repair, we must understand clearly the electric car batteries, motors and the corresponding parts of the model, must be checked at the end of maintenance. 2014 latest electric car sales, White Dragon machinery (certified), electric car sales by Shandong Bailong Machinery Co. White Dragon Shandong Machinery Co., Ltd. (www.bailonggrp.com) Shandong Linyi, bicycles, tricycles and accessories leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In the White Dragon machinery leadership with the staff warmly welcome all inquiries negotiations to create a better future for White Dragon machinery.