Iminyaka engama-20 yokuvelisa amava. Iimveliso esinokubonelela ngemibhobho yentsimbi, i-BW ye-BW ye-BW, i-Foure elungiselelwe, ifakwe flenges, i-valve yeshishini. IiBolts kunye namandongomane, kunye neeBhasi. Izixhobo zinokuba yintsimbi yekharbon, intsimbi engenasigaba, i-cr-mo alloy yentsimbi, i-Intral, i-Alloy, I-Alloy Allown ye-carbon, njalo njalo. Singathanda ukubonelela ngephakheji yonke yeeprojekthi zakho, ukukunceda ugcine iindleko kwaye kulula ngakumbi ukungenisa.