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GB/T 18115.8-2006
稀土金属及其氧化物中稀土杂质化学分析方法 铽中镧、铈、镨、钕、钐、铕、钆、镝、钬、铒、铥、镱、镥和钇量的测定
Chemical analysis methods of rare earth impurities in rare earth metals and their oxides Terbium-Determination of lanthanum, cerium, praseodymium, neodymium, samarium, europium, gadolinium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium and yt
GB/T 20505-2006
Anodizing of aluminium and its alloys - Measurement of reflectance characteristics of aluminium surfaces using integrating - Sphere instruments
GB/T 19801-2005
Non-destructive testing-Acoustic emission inspection-Secondary calibration of acoustic emission sensors
GB/T 17213.11-2005
工业过程控制阀 第3-2部分:尺寸 角行程控制阀（蝶阀除外）的端面距
Industrial-process control valves Part 3-2:Dimensions-Face-to-face dimensions for rotary control valves except butterfly valves
GB/T 19915.1-2005
Procedure of plate and tube agglutination for antibody against Streptococcus suis Type2
GB/T 7920.11-2006
Road construction and maintenance equipment - Asphalt mixing plants - Terminology and commercial specifications