Hangzhou Duoyuan Building Materials Co.?Ltd. is an integrated and supplying enterprise in China which engages in indoor and outdoor cultured stone ' s study, design, development, manufacture and application. Chiba cultured stone is cooperatively developed and produced by Chiba Landscape Designing Co.?Ltd., Yashi Artificial Stone Co. Ltd., and Hangzhou Duoyuan Building Materials Co. Ltd. Our company introduces the most advanced design methods, technology and equipment for foreign artificial cultured stone, and organizes and produces and measures according to the high-quality artificial cultured stone products standard of the international market. Going into operation so far, our company has already become the largest scale artificial artistic stone manufacturing, integrating, and supplying company in China.