Bambooyinka duritaanka shidaalka 320-2512 waxaa inta badan loo qaybin karaa saddex nooc: bamka duritaanka shidaalka plunger, bamka duritaanka shidaalka iyo bamka duritaanka shidaalka qaybinta rotor. Waxaa ka mid ah, bamka cirbadeynta shidaalka plunger-ka ayaa leh taariikhda ugu dheer waana tan ugu ballaaran ee loo isticmaalo kalsoonida sare;