1, Puyang Hengfeng Electronic Insulating Materials Co., Ltd. has a high annual output of pyromellitic anhydride, and the synthetic materials made from it have high temperature resistance, low temperature resistance, impact resistance, good electrical conductivity and mechanical properties.

2. Puyang Hengfeng Electronic Insulating Material Co., Ltd. has a wide business scope, including chemical products, special chemical products, import and export of goods, technology import and export, etc.