#tshuab warping
Koj nyob rau qhov chaw zoo rau lub tshuab warping. Tam sim no koj twb paub lawm tias, txawm koj tab tom nrhiav dab tsi los xij, koj yeej yuav pom nws ntawm Yongjin. Peb lav tias nws nyob ntawm no ntawm Yongjin. Cov khoom muaj qhov nyuaj uas xav tau. Thaum lub sijhawm hardening, cov hlau raug cua sov ntawm qhov kub siab kom txhim kho nws cov khoom siv kho tshuab. Peb lub hom phiaj yog muab lub tshuab warping zoo tshaj plaws. Rau peb cov neeg siv khoom mus sij hawm ntev thiab peb yuav koom tes nro