Aozhan Industrial Co., Ltd. was founded in October 2005 and is headquartered in Hangzhou, Zhejiang Province. It is a national high-tech enterprise integrating R&D, production, sales and service. The main products are all kinds of high-quality precision stainless steel fastening parts and high-end stainless steel wire rods. In 2021, it will achieve total sales of 3.5 billion yuan, ranking first in the industry.