... )External diameter ~ 200 mm;Internal diameter ~ 20 mm 4)Weight: 5kg,3kg,1.5kg,0.5kg etc. *commodity: Magnesium cylinders Mg content ... 99.9% External diameter ~ 200 mm Internal diameter ~ 20 mm Weight ... : 300 gr, 500 gr 1 kg , 1,5 kg , 3 kg 3,5 kg 5 ...