With the development of computer and the advancing of information technology, the rapid changing of the industry makes the enterprisers have to face greater challenge, so the problem in front of the enterprisers is not how much profit I can earn but how can I do to exist in this sharp rivalry. Therefore the corporations in the future are bound to change their development direction to the industry of higher lever of technique and better market-orientation. On this premise , 『Double Link enterprise CO., LTD 』 persevere in a constant R&D and innovative idea, and collection the various industry-related information as well as the market’s pulse in any time, timely adjust the pace of operation, and work conscientiously, so as to enable to make the company grow stronger and stronger in the torrent of age. Double Link enterprise CO., LTD was found in May of 2005. It is located in Chang’an Town, Dongguan City, Guangdong Province, Jinxia Henan Industiral Area, which is a high technological company collecting scientific research、production、design and selling in one body . Our company has engineers of electronic circuit of hardware and software, as well as engineers of machine design, who compose of the outstanding R＆D team and strong technical support. We have served our customer with our professional technique and faced the international market competition with plain and moderate attitude, and we will always uphold the management philosophy【faithfulness, practicality, innovation, share】. In addition to the currently existing products, the company is still committed to the development of new products to achieve sustainable enterprises. The patent products as follow: (一) Kick scooter （二）Electric scooter （三）Two-pedal scoter Extension of related products:(1) Electric golf- cart（2) Electric bicycle(3) Electric wheelchair and so no