Changxing Haihua Chemical Co., Ltd. is located in Dingxin Development Zone, Jiapu Town, Changxing County, Zhejiang Province, China. The main product is carbon molecular sieve, is the P`S`A pressure swing adsorption nitrogen with carbon molecular sieve professional manufacturers, the companys existing production scale in the forefront of peers. Changxing Haihua Chemical Co. Ltd. is a modern and new high-tech enterprise which manufacturing high-quality PSA series products. It is a Professional carbon molecular sieve P.S.A nitrogen (c.m.s) manufacturer in China. Over the years, carbon molecular sieve manufacturing technology of the company won the national invention patent (ZL2008 10062212.7), and one of ten utility model patents (ZL 201120006890.9 ZL 201120006872) by the carbon molecular sieve production equipment . The company has participate in lots of science and technology planning project in Zhejiang province, such as zhejiang innovation project, provincial science and technology type enterprises innovation fund and so on. The carbon molecularsieve series products of the company respectively received two awards of state-level key new products and provincial high-tech products. The trademark of Haihua was rated as the well-known one of Huzhou Administration for Industry and Commerce. It won the level AAA of high-integrity enterprise by Zhejiang Province Industrial and Commercial Administrative Management Bureau for many years.For years, Hai Hua has been committed to providing customers with stable and reliable products, and even in creation of value and trust for the user! Today the company not only strive for manufacturing products, but also for innovation and value contribution .