Shandong Full Auto Spring Co.,Ltd.,located in Fushan,Zibo High Technology We are dedicated to the design, manufacture, sale and service full ranges of conventional leaf springs, parabolic leaf springs, Z-type leaf springs and cabin leaf springs with 100,000 tons capacity per year. The raw materials we used are 60Si2Mn, 55CrMnA, 50CrVA etc.,the thickness from 6mm to 50mm. we can R & D and design products according to the requirements of customers.