| http://www.w3.org/ns/prov#value | - Metal trades assistants may: position and hold metal stock or products to enable work to be carried out perform assembly and dismantling operations, such as screwing or bolting solder or spot weld components using electrical spot or butt welding machines operate power hammers, presses or other cutting and shaping tools and machines transport tools, materials and workpieces to and from sites or wor
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