12 items. The North Dendrobium base is located on Huanhu North Road, Changshu City, Suzhou City, Jiangsu Province. The base has obtained 12 national patents for its unique planting, production, processing and other techniques. The company is committed to the planting, research and development of original ecological Dendrobium Huoshanum. It is a green enterprise in China that adheres to the concept of ecological health care. In the tissue culture and cultivation of Dendrobium Huoshanum, it uses ecological seedling technology, which is environmentally friendly and pollution-free.