ONORM EN 28653-1993 Jewellery- Ring-sizes - Definition measurement and designation (ISO 8653 1986)《珠宝首饰 指环 尺寸 定义、测量和命名(ISO 8653－1986)》.pdf

相关资源

DB12 T 817-2018 贵金属及珠宝首饰设计加工服务规范.pdf

STAS SR EN 29202-1995 Jewellery Fineness of precious metal alloys《珠宝首饰．贵重金属合金的优点》.pdf

STAS SR EN 28653-1995 Jewellery Rings-sizes Definition measurement and designation《珠宝首饰．环形尺寸定义，测量和命名》.pdf

ASTM F2999-2014 Standard Consumer Safety Specification for Adult Jewelry《成人珠宝首饰的标准消费者安全规格》.pdf

CSN EN 29202-1994 Jewellery Fineness of precious metal alloys (ISO 9202 1991)《珠宝首饰 贵金属合金的纯度（ISO 9202－1991）》.pdf

ONORM EN 29202-1993 Jewellery - Fineness of precious metal alloys (ISO 9202 1991)《珠宝首饰 贵金属合金的纯度(ISO 9202-1991)》.pdf

CSN ON 70 9413-1963 《假珠宝首饰 规格》.pdf

JIS S 4700-1998 Jewellery -- Ring-sizes -- Definition measurement and designation《珠宝首饰 戒指规格 定义、测量和标识》.pdf

DB50 T 360-2019 珠宝首饰 标识.pdf

猜你喜欢

NEN 6211-1978 Chemical analysis of iron and steel - Gravimetric determination of the nickel content in iron and steel《钢和铁的化学分析 钢铁中镍含量的重量法测定》.pdf

NEN 6212-1978 Chemical analysis of iron and steel - Gravimetric determination of the silicon content in iron mild and alloy steel (sulfuric acid method)《钢和铁的化学分析 铁，低碳钢和合金钢中硅含量的重量法测.pdf

NEN 6213-1978 Chemical analysis of iron and steel - Gravimetric determination of the total content of niobium and tantalum in steel《钢和铁的化学分析 钢中铌和钽总含量的重量法测定》.pdf

NEN 6214-1978 Chemical analysis of iron and steel - Determination of the magnesium content in iron by atomic absorption spectrometry《钢和铁的化学分析 铁中镁含量的原子吸收光谱法测定》.pdf

NEN 6214-1984 Chemical analysis of iron and steel - Determination of the magnesium content in iron by atomic absorption spectrometry《钢和铁的化学分析 铁中镁含量的原子吸收光谱法测定》.pdf

NEN 6215-1978 Chemical analysis of iron and steel Titrimetric determination of the vanadium content in iron and steel《钢和铁的化学分析 钢铁中钒含量的滴定法测定》.pdf

NEN 6216-1978 Chemical analysis of iron and steel Titrimetric determination of the sulfur content in iron and steel《钢和铁的化学分析 钢铁中硫含量的滴定法测定》.pdf

NEN 6217-1980 Chemical analysis of ir on and steel Titrimetric determination of the phosphorus content in iron non-alloy and alloy steel《钢和铁的化学分析 铁，非合金以及合金钢中磷含量的滴定法测定》.pdf

NEN 6219-1981 Chemical analysis of iron and steel Photometric determination of the arsenic content in iron and mild steel《钢和铁的化学分析 铁和低碳钢中砷含量的测定》.pdf