BK2 txiav tshuab yog kev kub ceev (ib txheej / ob peb txheej) cov khoom siv txiav, uas yog siv dav hauv tsheb sab hauv, tshaj tawm, tsoos tsho, rooj tog zaum, thiab cov ntaub ntawv sib xyaw. Nws tuaj yeem siv tau rau kev txiav tag nrho, ib nrab txiav, engraving, creasing, grooving. Qhov Kev Txiav Txim no muab kev xaiv zoo tshaj plaws rau ntau qhov kev lag luam sib txawv nrog kev ua haujlwm siab thiab yoog raws.