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GB/T 34626.1-2017
金属及其他无机覆盖层 金属表面的清洗和准备 第1部分:钢铁及其合金
Metallic and other inorganic coatings—Cleaning and preparation of metal surfaces—Part 1: Ferrous metals and alloys
GB/T 34630.1-2017
Friction stir welding—Aluminium and its alloys—Part 1:Terminology and definition
GB/T 3250-2017
Shearing and riveting test method of wires and rods for the aluminum and aluminum-alloy rivets
GB/T 4698.27-2017
海绵钛、钛及钛合金化学分析方法 第27部分:钕量的测定 电感耦合等离子体原子发射光谱法
Methods for chemical analysis of titanium sponge, titanium and titanium alloys—Part 27:Determination of neodymium content—Inductively coupled plasma atomic emission spectrometry
GB/T 34640.3-2017
Classification and recycling and utilization of wrought aluminium and aluminium alloy scraps—Part 3:Utilization of scraps
GB/T 34640.2-2017
Classification and recycling and utilization of wrought aluminium and aluminium alloy scraps—Part 2:Recycling of scraps