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Aerospace series. Paints and varnishes. Two component cold curing polyurethane coating. Abrasion resistant. Original standard UNE-EN 4406-2006 in PDF full version. Additional info + preview on request

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Aerospace series. Technical drawings. Representation of parts made of composite materials. Parts including core materials. Original standard UNE-EN 4408-003-2005 in PDF full version. Additional info + preview on request

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Aerospace series. Clips, spring tension, in alloy steel FE-PA3903. Original standard UNE-EN 4420-2003 in PDF full version. Additional info + preview on request

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Aerospace series. Studs, in titanium alloy TI-P64001, MoS2 coated, with serrated locking ring in corrosion resisting steel. Strength class: 1100 MPa(at ambient temperature). Original standard UNE-EN 4421-2007 in PDF full version. Additional info + preview on request

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Radiators and convectors - Part 1: Technical specifications and requirements. Original standard UNE-EN 442-1-2015 in PDF full version. Additional info + preview on request

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Radiators and convectors - Part 2: Test methods and rating. Original standard UNE-EN 442-2-2015 in PDF full version. Additional info + preview on request

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