Uyilo olulodwa lwehinge ye-pin-on, isitshixo senayiloni esomeleleyo kwaye esomeleleyo sinokulutshixa ucango ngokukhuselekileyo kwaye lwenza oluvaliweyo, luqinisekise ukutya kuhambo olubandayo kunye nobushushu obushushu.
Icala langaphambili lebhokisi lixhotyiswe ngekliphu ye-aluminiyam ye-alloy yangaphandle, elungele ukuphathwa kwezothutho kwaye inokunciphisa inani lamatyala okuvula ukuphumeza ukugquma okungcono kunye nesiphumo sokupholisa.