Isakhiwo esiphathekayo kulula ukusithwala.Izimbobo ezimbili ebusweni bayo zisetshenziselwa ukubopha;
Ubuso bayo bucutshungulwa nge-varnish yokubhaka, ene-glaze ephezulu kanye nokushesha okungelula;
I-Piston yenziwe nge-high carbon steel futhi iphinde icutshungulwe ngokusebenzisa i-chrome plating ukuze ivikele indandatho kawoyela futhi yandise impilo yesevisi;
Ijoyinti lifakwe ikhava yokunqanda uthuli ukuvikela izinyo le-screw ukuthi lithinteke.