1920-1990 Stage: With the development of the internal combustion engine technology and Texas oil increases, the electric car in 1920 after gradually lost its edge. Car market gradually to replace the internal combustion engine driving a motor vehicle. Only in a few cities retain very little and very limited tram and trolley car battery (with lead acid batteries, used in golf courses, forklifts and other fields). Development of electric vehicles since half a century of stagnation. With billowing oil resources to the market, people almost forget that there exists an electric car. Relative to the use of the electric car technology: electric drive, battery materials, battery pack, battery management, and so can not be developed or applied. Electric vehicles as a green sunrise industry, the development has been a decade in China. In terms of electric bicycles closed passenger tricycle, passenger tricycle real quote the end of 2010, China's electric bicycle has reached 120 million, and to 30 percent annual growth rate. From the energy point of view pictures one passenger tricycle, motorcycle bike only eighth, twelfth sedans. From occupy space in one of the space occupied by an electric bike only two very ordinary car. Judging from the trend, the electric bicycle industry is still optimistic about the market outlook. High-quality passenger tricycle, passenger tricycle, White Dragon White Dragon machinery provided by Shandong Machinery Limited. White Dragon Shandong Machinery Co., Ltd. (www.bailonggrp.com) strong, credible, Shandong Linyi bicycles, tricycles and accessories industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the White Dragon machinery and you hand into the brilliant, for a better future!