The beads used in wall surface construction are transparent and spherical with a maximum diameter of 7mm.Those you mentioned with a diameter of 9mm are mostly used as decorative material,and are mostly oval shaped or irregularly shaped.
是墙表面的建筑吗?...
你需要那种颜色的?颜色不同价格也不同
What color would you like?There are different prices for different colors.