Barter is the present and the future of international trade, especially for people who is starting in the import export business. Barter and more: Triangular operations.
The gear track is also called rack rail,rail track,placed on the rack seat, and the rack seat is welded on the side of middle trough. The rack seat and the gear track are connected trough the gear track pin.
Material: 42CrMo, 40CrMoSi, 30MnSi.
