Jinan Changqing Computer Application Co., Ltd, founded in 1992 is a high-tech enterprise issued by the Science and Technology Agency of Shandong Province, one of chief editors of Town Gas Alarm Design Standard of China and National Standard of Car Alarm Equipment. The chairman of the board is the director of China Gas Association, the standing director of the Shandong Province Gas Association and the Vice President of Ji?nan Gas Association. There are eight departments in the company like ...