Template in the plastic to the embodiment of the vertical concrete weapon in the walls of the hollow block

摘要

The mould is made of a piece of moulded plastic 2 millimetres thick which is four sided with four lugs. The shape is designed to fit tightly inside the opening in the corner of the concrete blocks. The mould is placed in the concrete block and extends for one third of its height and fits into the opening the next concrete block. Concrete can be poured down the opening and metal bars can also be inserted.