Txoj siv sia tsav yog ib qho tseem ceeb ntawm cov ntaub ntawv kis tau tus mob ntawm cov neeg kho tshuab kis tau tus mob, nrog rau qib kev siv tshuab.
Txhawm rau txhim kho qhov tseeb, lub teeb yuag, kev ua haujlwm thiab tus kheej xav tau ntawm cov cuab yeej siv tshuab,
Lub peev xwm ntawm daim ntawv thov tau dav thiab dav, thiab daim ntawv ntawm kev sib kis tau nce zuj zus.
Raws li qhov tseem ceeb ntawm txoj siv sia kis tau tus mob - txoj siv sia kis tau hloov pauv los ntawm cov khoom qub hnav mus rau qhov chaw ua haujlwm, thiab nws cov ntau yam thiab cov kev qhia tshwj xeeb tau tsim muaj ntau haiv neeg, los ntawm cov ntaub qub qub V- siv thiab zoo tib yam txoj siv tiaj tiaj kom nqaim V- siv thiab dav V- siv. , Kev sib xyaw ua ke V-siv, Trimming V- siv, V-ribbed siv, siv sij hawm siv, hlua core ca siv, zaj duab xis puag txoj siv, thiab lwm yam.
Cov hlua khi no tau siv dav hauv tsheb, tshuab, textiles, OA thiab cov khoom siv hauv tsev, kev lag luam teeb, tshuab ua liaj ua teb thiab lwm yam. Txawm li cas los xij, daim ntaub V-siv yog cov khoom tseem ceeb ntawm lub duav, suav txog ntau dua 70 feem pua ntawm tag nrho lub duav.
