特殊气体
提供电子级特殊气体，食品级气体
Showing all 17 results
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N2O
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CO2
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HCl
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He(Helium)
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NH3
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SF6
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Ar
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C3F8
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C4F8
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CF4
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CHF3
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N2
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NF3
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NO
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O2
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PH3
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SiH4
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