plate welding
51Fabrication of structural steel by plasma and laser cutting — Fabrication of dimensional (non flat) structural steel elements has historically been performed by sequential operations involving sawing, drilling and high temperature flame cutting to remove material. Each of these operations is performed on… …
52Ignimbrite — is a volcanic pyroclastic rock, often of dacitic or rhyolitic composition. Ignimbrite is the deposit of a pumice rich pyroclastic density current, or pyroclastic flow , a hot suspension of particles and gases that flows rapidly from a volcano,… …
53Numerical control — CNC redirects here. For other uses, see CNC (disambiguation). A CNC Turning Center …
54Pipe (fluid conveyance) — For structural pipe, see Hollow structural section. For other uses, see Pipe (disambiguation). Steel pipes …
55Welder — A welder (also weldor, which term distinguishes the tradesman from the equipment used to make welds) is a tradesman who specialises in welding materials together. The materials to be joined can be metals (such as steel, aluminum, brass, stainless …
56Wire — For other uses, see Wire (disambiguation). Wires overhead A wire is a single, usually cylindrical, flexible strand or rod of metal. Wires are used to bear mechanical loads and to carry electricity and telecommunications signals. Wire is commonly… …
57Mausoleum of Mao Zedong — Coordinates: 39°54′04″N 116°23′29″E / 39.9010°N 116.3915°E / 39.9010; 116.3915 …
58Stamping press — Power press with a fixed barrier guard A stamping press is a metalworking machine tool used to shape or cut metal by deforming it with a die. Contents 1 Components 1.1 …
59Copper — For other uses, see Copper (disambiguation) …
60Cromwell tank — Tank, Cruiser, Mk VIII, Cromwell (A27M) Cromwell held in a Museum Type Cruiser tank Place of origin …
