Ntau yam tiav: Lub raj roj yaug nrog ntau hom ntawm φ25mm-φ 50mm, φ30, 35, 40, 50 raj yas, yuav tau qhib raws li tus neeg xav tau kev pab.
Cov khoom zoo: Cov ntaub ntawv luam tawm, cov ntaub qhwv npog printing, kub stamping, lub teeb ci txawv ntawm nyias qhov sib txawv thiab cov duab, cov khoom siv roj ntsha, khoom siv roj, thiab lwm yam xim.
