| http://www.w3.org/ns/prov#value | - They may consist of metals and non-metals such as zinc and graphite or of metals selected from the emf table such as aluminum and tin added as separate metal powders or an composite metal plates in which each individual particle may consist of zinc completely encapsulated in copper or copper encapsulated in zinc and the particle size of these particles may range from 4 to 15 microns on average whi
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