Yeeb nkab xov tshuab dhos tseem hu ua roj lub teb chaws tshuab dhos, xov tig feem ntau yog hais txog cov txheej txheem ntawm machining threads ntawm ib qho chaw ua haujlwm nrog cov cuab yeej tsim, feem ntau suav nrog tig, milling, tapping, threading sib tsoo, sib tsoo, thiab cua daj cua dub txiav. Thaum tig, milliin ...
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