EN 14420-6 Hose fittings with clamp units - Part 6: TW tank truck couplings
EN 22768-1 General tolerances; part 1: tolerances for linear and angular dimensions without individual tolerance indications (ISO 2768-1:1989)
EN 573-3 Aluminium and aluminium alloys - Chemical composition and form of wrought products - Part 3: Chemical composition and form of products*， 2021-10-31 Update
EN ISO 228-1 Pipe threads where pressure-tight joints are not made on the threads - Part 1: Dimensions, tolerances and designation ISO 228-1: 2000
EN ISO 4018 Fasteners - Hexagon head screws - Product grade C (ISO 4018:2022)*， 2022-07-20 Update
EN ISO 4034 Hexagon regular nuts (style 1) - Product grade C - Technical Corrigendum 1 (ISO 4034:2012/Cor 1:2013)
ISO 228-1 Pipe threads where pressure-tight joints are not made on the threads - Part 1: Dimensions, tolerances and designation
ISO 2768-1 General tolerances; part 1: tolerances for linear and angular dimensions without individual tolerance indications
ISO 4018 Fasteners — Hexagon head screws — Product grade C*， 2022-06-28 Update