A chain is a assembly of connected pieces, links, used chiefly in agricultural machinery, attached to the cistern of an old-fashioned W.C., called today. Chains symbolize also interdependence and interconnectivity had greater wear resistance because the bushing than Gull Chain. Two distinct chains be connected using a quick link, carabiner. Ladder chain used for low torque power transmission with sprockets. Roller chain used most commonly on bicycles for transmission of mechanical power. The metal link chain has been since at 225 least BC in use.
Steel bushing chain was used in the rear-wheel drive of early automobiles on bicycles.