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CAS No.：7439-90-9</br> Formula：Kr</br> EINECS：7439-90-9</br> Constituent：Industrial Pure Air</br> Grade Standard：Industrial Grade</br> Chemical Property：Non-Flammable Gas
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CAS No.：7440-63-3</br> Formula：Xe</br> EINECS：231-172-7</br> Constituent：Industrial Pure Air</br> Grade Standard：Industrial Grade</br> Chemical Property：Non-Flammable Gas
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Great Quality High Purity UHP Industrial Gas Helium He Gas 99.999%/99.9999% 6m3/7m3/10m3 China Factory Best Prices
CAS No.：7440-59-7</br> Formula：He</br> EINECS：231-168-5</br> Constituent：Industrial Pure Air</br> Grade Standard：Industrial Grade</br> Chemical Property：Non-Flammable Gas
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