Kev siv lub log log kom haum

Puas yog koj tab tom tham txog thaj tsis muaj log lossis thaj tsis muaj tub. Lub thaj rau cov log tsheb yog Mike ncoo. Tom qab polishing lub log nrog nrog grinder, txhuam cov kua nplaum. Lub thaj yuav tsum txuas nrog. Tom qab cov kua nplaum tau qhuav, Tsuas lo nws rau ntawm lub log. Yog tias nws yog lub raj sab hauv, cov qauv txheej txheem zoo ib yam, tab sis daim ntaub sib txawv, nws muaj qhov tshwj xeeb rau cov raj sab hauv.