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Niobium bar |
Niobium bar Material: RO4261 Execution standard: ASTM B392-95 Size:φ0.25mm～63.5mm Application: mainly used in the production of high pressure sodium lamp
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Niobium bar |
Niobium bar Material: RO4261 Execution standard: ASTM B392-95 Size:φ0.25mm～63.5mm Application: mainly used in the production of high pressure sodium lamp
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