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China GB Standards List

 GB/T 17683.1-1999  
Solar energy--Reference solar spectral irradiance at the ground at different receiving conditions--Part 1:Direct normal and hemispherical solar irradiance for air Mass 1.5

太阳能 在地面不同接收条件下的太阳光谱辐照度标准 第1部分:大气质量1.5的法向直接日射辐照度和半球向日射辐照度
 GB/T 342-1997  
Dimension,shape,Mass and tolerance for cold-drawn round,square and hexagonal steel wires

冷拉圆钢丝、方钢丝、六角钢丝尺寸、外形、重量及允许偏差

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