Tiag tiag khoov, raws li lub npe qhia, yog kom compact qhov khoov. Thaum qhov tseeb nkhaus, cov menyuam sab hauv thiab sab nraud thiab cov phab ntsa sab hauv thiab sab nrauv ntawm lub raj khoob yog compacted.
1) Qhov kom zoo dua ntawm cov khoom khoov yog tias qhov rov qab yog me me, qhov molding yog qhov tseeb, thiab ntev npaum li cov menyuam hom yog qhov tseeb, R ntawm lub kaum sab hauv yog qhov tseeb dua.
2) Qhov tsis zoo ntawm cov khoom khoov yog tias cov nyhuv stretch / thinning. Ua ntej, cov khoom khoov yuav ua rau ncab ntawm qhov khoov, thiab cov nyhuv stretching yuav ua rau luv luv ntev ntawm txoj kab nkhaus; Thib ob, cov hlau ntawm qhov tseeb khoov yuav ua thinner vim stretching.
