... 1000 tons. 3). Special FavorHuge output brings considerate raw material purchasing, which make us special importance to all steel ... rate & better lead time. Sometimes, we can get special material, but others can not. 4). Flexible & value-added serviceLarge ... for trailer, truck & busBesides LEAF SPRING, we also supply LEAF SPRING material, wheel rim, air suspension, landing gear, turntable, axle ...