Cagaf-cagafeedka SD22D waxaa loo isticmaalaa hawlgalka dhismaha waddooyinka ee goobta shaqada ee Waqooyiga Afrika.Cagaf-cagafeedka saxaraha ah ee SD22D waxa uu ku qalabaysan yahay shaandhada qaadashada saddex-heer ah iyo bogie fidsan si loo dheereeyo nolosha loona wanaajiyo isu socodka mishiinka.