1990-present: dwindling oil resources, pollute the atmosphere of serious wheeled electric car, so people refocus electric vehicles. Promote the use of electric vehicles is mainly oriented folk before 1990. Academic groups such as non-governmental organizations established in 1969: World Electric Vehicle Association (World Electric Vehicle Association). World Electric Vehicle Association, held every year and a half of professional conferences and exhibitions EV Electric Vehicle Symposium and Exposition (EVS) in different countries and regions of the world. Beginning of the 1990s all the major automobile manufacturers began to focus on the future development of electric vehicles and electric vehicles put into the field of finance and technology. In the January 1990 Los Angeles Auto Show, GM's president to tell the world Impact pure electric cars. 1992 Ford calcium-sulfur battery Ecostar, 1996 Toyota cars use nickel-metal hydride batteries RAV4LEV, 1996 French Renault Clio, 1997 Toyota's Prius hybrid car off the assembly line three electric cars Merchants, 1997 Nissan The world's first to use a lithium-ion battery electric vehicles Linyi three Prairie Joy EV electric car, Honda released in 1999, sales of hybrid Insight. Select models feature electric car points 1. Check the appearance, watching paint, if the plating surface intact. 2. Press the manual practical work status report again wheeled electric car, check the vehicle. Speed ??transition should be smooth, no sense of shock start, wheel rotation should be flexible, no Zhizhong sense, wheels rotate voice soft, no abnormal sound, brakes should be an appropriate degree, reliable braking. 3. Also check that the car should have auxiliary functions (such as battery indicator, speed, mileage display, etc.) is in a normal state. 4. The vehicle of matching accessories, chargers, certificate, manual, warranty card is complete. 7 continues the course. Three-wheeled electric car brand _ White Dragon Machinery (certified) _ three-wheeled electric car provided by the White Dragon Machinery Co., Ltd. Shandong. 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.