Tai'an Dingxin Coolers Co.,Ltd. is located at the foot of Mount Tai,which is a joint-stock company established according to modern company system.The production is car charge air cooler and aluminum (or copper) water (or oil) radiator.The company's fixed assets is 20 million RMB.There are 102 employees in it,besides 32 engineers and technicians.Its produce capacity is 100 thousand radiators a year.The company,which has got certification of ISO9001,is strict to contract and cherish its reputation.