Xov xwm
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Cov yam ntxwv thiab kev ua haujlwm ntawm cov hniav slitting
Peb cov hniav slitting yog ua los ntawm cov khoom zoo TUNGSTEN CARBIDE yog tsim rau slitting kev khiav hauj lwm thiab ntau hom slitting tshuab. Slitting riam yog qhov tseem ceeb tshaj plaws ntawm cov cuab yeej txiav. Vim tias qhov yuav tsum tau ua rau qhov raug ntawm cov khoom, cov riam slitting yuav tsum muaj qhov tseeb ...Nyeem ntxiv
