Shirkaddu waa soo saaraha alaab-qeybiyaha OE kaas oo madax silinda aluminium xirfad leh ah in ka badan 20 sano. Diiradda saar tayada iyo adeegga. Madaxa silinda waxaa la siiyaa shahaadada xaqiijinta ISO16949, "madaxa silinda shaabadaysan ee sare", "nolosha dheer ee faa'iidada leh ee madaxa silinda" iyo shanta shati ee kale ee nooca adeegga.