After scrutinizing both the contents and quantity of work carried out in the Shipbuilding Plate Shop, we adopted a renovated production system by using conveyors, whereby the steel materials are not only carried on the conveyors but at the same time processed thereon. The result proved so fine that the layout of the new shop became neat and systematic as is illustrated in Fig. 7, the production efficiency was improved by more than 30 percent, and the production capacity per unit area was nearly doubled.