Vim li cas lawv tseem ceeb?Ib qho tseem ceeb kev lag luam Hoobkas yog kom paub qhov kev sib raug zoo ntawm cov hniav thiab cov workpiece.Yog tias koj muaj kev paub dhau los hauv kev ua haujlwm ntoo lossis lwm yam kev siv cuam tshuam, koj tau pom tias lub cuab yeej tsis raug tuaj yeem ua rau cov khoom puas tsuaj lossis ua rau lub cuab yeej nws tus kheej tawg sai dua.Yog li, xyuas kom koj xaiv cov saw zoo ua ntej koj yuav lossis siv lawv.Tus naj npawb thiab qhov loj ntawm cov hniav, yog yam uas koj yuav tsum tau ceeb toom.

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