Fabricated Steel Mesh
http://zanderhqjr660.jigsy.com/entries/general/5-qualities-the-best-people-in-the-civil-steel-fixing-sydney-industry-tend-to-have
The style of the repair work need to be such that there are no sharp corners and the new insert plate must be of similar quality and spec to that of parent product. This technique is called window weld (or window