By contrast, the magnesium cylinder weighs as astonishingly _light_ 90g. If after extensive handling, the varnish show signs of wear it can be removed with acetone and re-applied. All are minimum purity 99.9%.
By contrast, the magnesium cylinder weighs as astonishingly _light_ 90g. If after extensive handling, the varnish show signs of wear it can be removed with acetone and re-applied. All are minimum purity 99.9%.