The tonkin bamboo of Aozi is famous in and abroad. Aozi, with its geographical environment and climate suitable for Tonkin Bamboos' growth, produces bamboo which is straight, thick-walled, few-branched, few-leaved, diminutive noded, smooth, tough, flexible, worm-proof and anticorrosive, enjoys the reputation of ※steel bamboo§. It is used to making desk, chair, bookshelf, fencing, bird cage, fish pole, bird house, basket, bamboo picture, bamboo shade, flowerpot, and as materials for building, gardening and papermaking. It is mainly exported to Europe, the United States , Australia , Holland etc., more than forty countries.