| http://www.w3.org/ns/prov#value | - 20110079578Nickel-Chromium Alloy Stripper for Flexible Wiring Boards - A nickel-chromium alloy etching composition comprising sulfuric acid, a source of chloride ions, including hydrochloric acid or sodium, potassium or ammonium chloride, and a sulfur compound comprising a sulfur atom with an oxidation state between ???2 to +5, such as thiosulfate, sulfide, sulfite, bisulfite, metabisulfite and ph
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