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  2. Construction worker - Wikipedia

    en.wikipedia.org/wiki/Construction_worker

    Thus, construction safety is intended to ensure a safe environment for workers, who are required to be educated on safety at each site. [12] Construction workers must remain vigilant by keeping work areas clear, learning safe lifting techniques, being aware of seasonal hazards, and regularly inspecting all equipment, among other preventive ...

  3. List of construction trades - Wikipedia

    en.wikipedia.org/wiki/List_of_construction_trades

    Among the construction trades, in most industrialized countries, each has a distinct 2-5 year craft apprenticeship education and usually once started a worker remains in a single craft and progresses through ranks of skill for the duration of their career (pre-apprentice, apprentice, and journeyman; some countries include a post-journeyman ...

  4. Welder - Wikipedia

    en.wikipedia.org/wiki/Welder

    A welder is a person or equipment that fuses materials together.The term welder refers to the operator, the machine is referred to as the welding power supply.The materials to be joined can be metals (such as steel, aluminum, brass, stainless steel etc.) or varieties of plastic or polymer.

  5. Welding Procedure Specification - Wikipedia

    en.wikipedia.org/wiki/Welding_Procedure...

    The AWS defines welding PQR as a record of welding variables used to produce an acceptable test weldment and the results of tests conducted on the weldment to qualify a Welding Procedure Specification. For steel construction (civil engineering structures) AWS D1.1 is a widely used standard.

  6. Pipefitter - Wikipedia

    en.wikipedia.org/wiki/Pipefitter

    Pipe fitters plan and test piping and tubing layouts; cut, bend or fabricate pipe or tubing segments; and join those segments by threading them, using lead joints, welding, brazing, cementing, or soldering them together. They install manual, pneumatic, hydraulic and electric valves in pipes to control the flow through the pipes or tubes.

  7. List of welding codes - Wikipedia

    en.wikipedia.org/wiki/List_of_welding_codes

    Description BS 499-1: Welding terms and symbols. Glossary for welding, brazing and thermal cutting ... Welding design and construction; Welding-related certifications ...

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