Kadib, dejinta dhererka bacda:
Deji dhererka bacda ilaa 350mm bogga halbeegga ee guddiga hawlgalka, cabbiraadda masaafada u dhaxaysa labada calaamad ee midabka waa 320mm。Dhererka bacda waa inuu ka weyn yahay 30毫米masaafada u dhaxaysa labada calaamadood ee midabka。