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2. Scaffolding - Wikipedia

   en.wikipedia.org/wiki/Scaffolding

   Tubes are usually made either of steel or aluminium. Composite scaffolding uses filament-wound tubes of glass fibre in a nylon or polyester matrix. Because of the high cost of composite tube, it is usually only used when there is a risk from overhead electric cables that cannot be isolated. Steel tubes are either 'black' or galvanised.

3. Tube and clamp scaffold - Wikipedia

   en.wikipedia.org/wiki/Tube_and_clamp_scaffold

   Vertical tubes are connected to horizontal tubes via right angle clamps. Diagonal tubes are connected to the scaffold at regular intervals via swivel clamps in order to provide stability to the structure. This type of scaffold is generally used where extensive versatility is required. In many countries, it is common in construction. Horizontal ...

4. Galvanization - Wikipedia

   en.wikipedia.org/wiki/Galvanization

   Galvanized surface with visible spangle Galvanization ( also spelled galvanisation ) [ 1 ] is the process of applying a protective zinc coating to steel or iron , to prevent rusting . The most common method is hot-dip galvanizing , in which the parts are coated by submerging them in a bath of hot, molten zinc.

5. Pipe (fluid conveyance) - Wikipedia

   en.wikipedia.org/wiki/Pipe_(fluid_conveyance)

   While similar standards exist for specific industry application tubing, tube is often made to custom sizes and a broader range of diameters and tolerances. Many industrial and government standards exist for the production of pipe and tubing. The term "tube" is also commonly applied to non-cylindrical sections, i.e., square or rectangular tubing.

6. Hot-dip galvanization - Wikipedia

   en.wikipedia.org/wiki/Hot-dip_galvanization

   Galvanised hand rail Crystalline surface of a hot-dip galvanized handrail, known as "spangle" Protective effect: completely rusted letter box mounted to a hot-dip galvanized wall Steel strip coming out of the zinc pot of a continuous vertical hot-dip galvanizing line. Hot-dip galvanization is a form of galvanization.

7. Layher - Wikipedia

   en.wikipedia.org/wiki/Layher

   In 1965, the system scaffolding specialist designed, for example, the definitive insertion-frame system for facade scaffolding construction, with its SpeedyScaf made from steel and aluminium. In 1974, Allround Scaffolding superseded conventional scaffolding construction techniques, using steel tubes and couplers, with its bolt-free wedge-head ...