Inkqubo ekhethekileyo kunye neenzuzo zeempawu:
1. Umphezulu ufakwe i-galvanized, kunye nokukhanya okuphezulu, ukubukeka okuhle, kunye nokuxhathisa okuqinileyo kwe-corrosion (iinkqubo ezikhethiweyo zonyango lwe-surface zinc, i-zinc plating, i-phosphating emnyama, i-gray phosphating, kunye ne-nickel plating).
2. I-Carburized and tempered, ubunzima bomhlaba buphezulu, obunokufikelela okanye bugqithise ixabiso eliqhelekileyo.
3. Itekhnoloji ephezulu, i-torque encinci yokujija kunye nokusebenza kokutshixa okuphezulu.