DIN EN 74-1:2005 pdf free.Couplers, spigot pins and baseplates for use in falsework and scaffolds -Part 1: Couplers for tubes - Requirements and test procedures. 6 General requirements 6.1 Materials All elements of couplers shall be made of steel or cast iron and shall fulfil the requirements given in European Standards where design data are provided. Some information about those...
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