... stone bowl, Maifan stone productsSize/Type: as requestDescription:Maifan Stone is really the valuable object for the humanbeings.It has the ... water activity,but also adjust the PH matter as well. Right now, there are many Maifan Stone Research Institutes abroad which are ... purification, soil amelioration, animal feeding, bathing, pharmacing,ect. It is to be called as Magic Stone,Healthy Stone or Long ...