The Qingdao Kay car seal products, specializing in the production plant, has been to Weichai, Deutz, Xichai supporting, Weifang, Weifang Diesel Deutz, Wuxi Diesel, Heavy Truck, Hangzhou Class A Supplyproviders, to Weichai supporting more than 200 kinds of seal products, Wuxi Diesel Engine Factory supporting 60 kinds of seals, heavy truck, Hangzhou supporting 80 seal products. I also with Weichai Power Co., Ltd. Chongqing Branch, Shaanxi Heavy Duty Automobile Co., Ltd., Longkou pump Fuel Injection Co., Ltd., Asia new Ke Nanyue (Hengyang) Co., Ltd., Anhui Tianli power Co., Ltd., Shandong Huayuan Laidong internal combustion engine Co., Ltd., cloud power Co., Ltd. maintained a good supporting relationship Kay products made ​​of high quality materials, precision workmanship, advanced testing equipment, strict testing procedures, high technology products