DuPont Proton Exchange Membrane Nafion 117 membran perfluorinasi asam sulfonik ion N117 (5x5 cm, 10x20 cm, 20x20 cm)
USD 8.55USD 9.50
DuPont Proton Exchange Membrane Nafion 117 membran perfluorinasi asam sulfonik ion N117 (5x5 cm, 10x20 cm, 20x20 cm)