Two 3 in. X 3 in. angle-bars are now drilled in a similar manner, using the flat steel bars as templates.
Iintonga zeembombo ezimbini eziphundaphindwe kathathu ukungena nakathathu ziye zibholwe ngendlela efanayo, usebenzisa iintonga ezithe tyaba njengeplanga elisisikhokeli elikhokela ukusika okanye ukubhola into.