Shanghai Foreign Trade Co.,LTD established in 1998,is an integrated production and marketing of auto air-conditioner parts company. More than 80% of the products are sold to America and Europe,and the domestic sales amount has been increasing rapidly in recent years. We agent ShuangHua series of products sales and marketing network is being perfected day by day.shuangHua have more than 40 technicians, 50% of whom are senior engineers and researchers. In addition, we have established sound relationship with domestic auto air-conditioner and gas engine, colleges and universities, and enterprises. So far we can design and manufacture lube oil coolers, radiators, and core cooler, etc. dynamic heat exchangers for auto, tractor, engineering machine, gas engine, and shipping dynamic device, etc., and provide design and service of dynamic heat exchanger for colleges and universities, and science & research units.We carry out modern scientific management and follow the principle and requirement of ISO9000,ISO1400. In 2000, we passed the certification of ISO9001 Quality System.