1.Made up of activated carbon 2.used for absorb harmful gas 3.special gift for home decorating 4.Chinese dragon design About charcoal carvingIn 1914-1918 the introduction of poisonous gases into the battlefields of the First World War gave great impetus to the development of large-scale production methods for adsorbent carbons suitable for use in military respirators. Granulated carbons, with ...
[China Manufacturers]