Izipikili zekhabhoni eziphakeme zine-anti-ukuguga, ukumelana nokushintsha kwezinga lokushisa okungazelelwe, ukulwa nokugqwala, ukumelana nokubanda nokushisa, umthamo omkhulu wokuthwala, ukucindezela okuphezulu, izakhiwo ezinhle zokudonsa;ayikhubazeki kalula ngemva kokulayisha, umswakama-ubufakazi, ukunciphisa ukudlidliza, ukumuncwa komsindo kanye nokwahlukanisa okuhle.Kulula ukufaka, ukushaya ngesando kungenziwa, awekho amathuluzi okufaka akhethekile adingekayo.
I-carbon steel ethandwayo iyacinywa futhi iqinile, inhle futhi imelana nokugqwala, enobulukhuni obuphezulu kanye nokuqina okuhle.
Ukuqina okuphezulu namandla aqinile okuvikela ukuguga nokukhala.
Iphethini ye-Convex yomzimba wezinzipho ukuze uthole ukungqubuzana okukhulu, umzamo omncane kanye nesivinini esengeziwe.
Kuqiniswe ukuze kungene kangcono kanye nokuguqulwa okuncane.