N117 Proton exchange membrane Nafion117 Perfluorosulfonic acid ion membrane 7*7cm For fuel cell electrolysis hydrogen production

N117 Proton exchange membrane Nafion117 Perfluorosulfonic acid ion membrane 7*7cm For fuel cell electrolysis hydrogen production
sku: 1005004786561836
$78.50+53%
$120.00
Shipping from: China
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