Lub siab tsis siv neeg ntug banding tshuab yog tsuas yog siv rau kev tsim cov rooj tog vaj huam sib luag thiab lub qhov rooj ntoo, thiab muaj qhov cuam tshuam tseem ceeb ntawm ntau yam ntoo rooj tog, rooj ntoo thiab lwm yam khoom.Cov haujlwm muaj xws li pre-milling, gluing, kawg trimming, ntxhib trimmi ...
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