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名称
 
纯度
氮气(气、液)N2
Nitrogen
99.2~99.999%
氢H2
Hydrogen
99~99.999%
氧气(气、液)O2
Oxygen
99.999%
高纯氦He
Helium
99.999%
纯氦He
Helium
99.99%
二氧化碳CO2
Carbon Dioxide
99.9%
乙炔C2H2
Acetylene
98~99.99%
高纯氩(高、纯)Ar2
Argon
99.99~99.999%
硅烷SiH4
Silane
>99.999%
环氧乙烷C2H40
Ethylene oxide
99.9%

 

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