The structure of gravity conveyor systems varies as per their applications. For instance, when the intention is maximization of open space usage, the elements of the gravity flow rack system are made to hang from ducts and are kept suspended aerially. Again the elements an H-shaped frame can be used to support the elements of the conveyor systems. The sections of its tracks may also be connected securely to a tubular wielded construction in order to provide with them an extra choice of portability. The process of order picking also depends on the design of the conveyor systems. While some are designed to have their orders pickers positioned along the track, there are others that demand the worker to be stationed at a workstation to assemble orders when the product comes by.