Sources: China's export curbs on critical metals have disrupted supplies of micro drill bits made mainly from tungsten carbide, used in PCBs and chip substrates (Cheng Ting-Fang/Nikkei Asia)

TechmemeNovember 5, 2026en

Cheng Ting-Fang / Nikkei Asia : Sources: China's export curbs on critical metals have disrupted supplies of micro drill bits made mainly from tungsten carbide, used in PCBs and chip substrates — TAIPEI — China's export controls on critical metals have disrupted supplies of micro drill bits, little-known but critical components …

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