These parts like outer corners are used for connecting two vertical forms.In this case, outer surface of cement will b in the form of pointed. It should be mentioned that connecting suspension forms to floor forms in concrete-based girders formwork is regarded as the most application of punched angled irons.
Fillers are of various sections and in formwork system, enjoy various applications as follows:
1-For covering distances that application of standard modular forms is not possible.
2-In spaces limited to formwork that possibility of disassembling forms is not applicable. In such case, application of filler seems necessary.
3-In cases that possibility of displacement of all formwork system is possible with crane. By placing filler between large panels, integrated and large panels can be separated from surface of concrete easily from each other.