Industrial Valves - Metallic butterfly valves This standard specifies requirements for butterfly valves having metallic bodies for use in flanged or butt welding piping systems and used for isolat...
Descripción: Welding consumables. General product standard for filler metals and fluxes for fusion welding of metallic materials
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Rolled Steel for Welded Structure JISFull description
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action on structuresFull description
BS EN 12504-4 (2004)Full description
Light and lighting - Measurement and presentation of photometric data of lamps and luminaires - Part 2: Presentation of data for indoor and outdoor work places
