... :2000 2)mg content 99.9% 3)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 ...