... , 2.Material: SUP7, SUP9, SUP9A, SUP10, SUP11 and SUP11A Z Type Leaf Spring I. Our main section size list for LEAF ... in TRA series productsl Chongqing branch plant: specialized in Z type air linkerl Foshan branch plant: specialized in small sizes productsIn ... SPRING, we also supply LEAF SPRING material, wheel rim, air suspension, landing gear, turntable, axle even complete semi-trailer. Our company ...