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Tungsten composite electrode (WES)
Cerium tungsten electrode(WC20)
Compound tungsten electrode(WES)
Lanthanum tungsten electrode(WL15)
Lanthanum tungsten electrode(WL20)
Pure tungsten electrode(WP)
Thorium tungsten electrode(WT20)
Yttrium tungsten electrode(WY)
Zirconium tungsten electrode(WZr8)