The rioundish and slice charcoal are produced with the advanced pyrogenation technoiogy,using the alpine bamboo .roundis筒炭、片炭系用高山毛竹烧制而成，筒炭可吸附有害气体去除异味，清新空气；片炭用于净化和改善饮用水水质，增加水中的矿物质，去除米物中的残留农药等。