# The Road Vehicles (Construction and Use) Regulations 1986, Paragraph 1: Manufacture of valves

Extent: E+W+S

The stamping or pressing from which each valve is manufactured shall be made from bars produced by (a) extrusion, (b) rolling, (c) forging, (d) extrusion and drawing, or (e) rolling and drawing.

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Source: https://www.legislation.gov.uk/uksi/1986/1078/schedule/4/part/II/paragraph/1 (the official version)
Page: https://openlegislation.uk/road-vehicles-construction-and-use-regulations-1986/schedule-4/part-II/paragraph-1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.