Cov khoom siv hauv tsev
Cov khoom siv hauv tsev
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Laser Tej Tshuab rau Tsev Khoom Siv Khoom Siv Khoom Siv Hauv Tsev
Cov khoom siv hauv tsev / cov khoom siv hluav taws xob feem ntau siv hauv peb lub neej txhua hnub. Thiab ntawm cov khoom siv no, cov khoom siv ntawm cov hlau tsis muaj steel yog siv ntau heev. Rau daim ntawv thov no, lub laser txiav tshuab feem ntau yog siv rau drilling thiab txiav tawm ...Nyeem ntxiv
