| http://www.w3.org/ns/prov#value | - , cupric oxide, cuprous chloride, cupric chloride, cuprous bromide, cupric bromide, copper sulfate, copper nitrate, copper phosphide, copper hydroxide, copper acetate and the like, zinc and zinc compounds such as zinc powder, zinc oxide, zinc chloride, zinc bromide, zinc sulfate, sinc nitrate, zinc carbonate, zinc acetate and the like, tin and tin compounds such as tin powder, tin oxide, tin chlor
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