Usetyenziso oluqhelekileyo lubandakanya uvavanyo lweziguquli, izixhobo zokutshintsha, iintambo, ii-capacitors, amaqonga eenjini zomoya, izitena ezishushu zeebhakethi, iibhotile zevacuum kunye nezinye izixhobo ezinxulumene noko ezifana neziphazamisi, iingubo, iintambo, iiglavu, ithumbu le-hydraulics, izixhobo zokuguqula izixhobo.