86-535-2972780
No. 71-427, Jianshe Road, Zhifu Dist., Yantai, Shandong, China (Mainland)
Factory direct sales 1-35 mm and up polished black pebble, US $ 2 - 2.8 / Kilogram, 4 years, Online Technical Support, Others.Source from Yantai Kingstone Imp. And Exp. Co., Ltd. on Waimaotong.com.