Taking Dong’An Heibao and Tianrun Crankshaft as the leaders , the group scale consisting of 35 manufacturing & processing enterprises has been established. The products include over ten cate-gories such as light truck, electrically operated motor car , crankshaft, leaf spring ,bearing, tyres, glass for the car, windshield wiper for the car ,indoor decoration and so on. The annual productive capacity is 100 thousand cars, 750 thousand crankshafts, 300 thousand sets of tyres and 180 thou-sand sets of leaf springs.