| http://www.w3.org/ns/prov#value | - For the purpose of the Washington state public works law, chapter 39.12 RCW, ironworkers perform all work in connection with field fabrication and/or erection, installation, removal, wrecking and dismantling of structural, architectural and reinforcing iron and steel, ornamental lead, bronze, brass, copper and aluminum, and plastics or other materials when used in place thereof.The work performed
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