a
  • Alfa：金线, 0.025mm (0.001in) 直径, 退火, 99.95% (metals basis)
  • Alfa：金线, 0.025mm (0.001in) 直径, 退火, 99.95% (metals basis)
b

Alfa：金线, 0.025mm (0.001in) 直径, 退火, 99.95% (metals basis)

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