Pob zeb zoo tshaj plaws. Muaj ntau hom pob zeb granite hauv ntiaj teb, tab sis tsuas yog ob peb lub pob zeb xwb thiaj siv tau rau cov khoom siv precision. Peb tau tshawb nrhiav ntau lub qhov tsua los ntawm thoob plaws lub ntiaj teb thiab sim cov pob zeb sib xws. Thaum kawg, peb pom ntau lub pob zeb uas muaj cov khoom zoo: Jinan Black Granite hauv Suav teb, keeb kwm: Jinan nroog, Shandong xeev, Suav teb (tsuas yog hauv Jinan nroog) ...