1. Concrete embedded parts. Depending on the functional requirements of the building, it may be necessary to place the iron embedded parts in a predetermined position before pouring the concrete. After pouring the concrete, it is fixed in the concrete and exposed a welded iron plate. More common in industrial buildings and factories, where equipment is required.
2, type concrete prefabricated parts. For example, the outer window panel, the window sill, the concrete ventilation hood, the decorative concrete line, etc., the body type is relatively small, and the on-site supporting template is inconvenient to be cast, and can be made on the open space and transported to the designated position for installation. It is generally necessary to leave a steel head or an embedded part for solder joints.