Sobre A Pre-Engineering Strategy to Building with Steel
Pre-engineering describes the method of making something ahead of when it is required and also usually in a manufacturing environment instead of at the final area. Pre-engineering is specifically useful when the thing being created is large steel framing. This is because the professional's shop has the room and also equipment for quickly gauging and placing large steel beam of lights.
Simply puts, pre-engineering is an alternative strategy to building with steel (and also perhaps various other metals).