Hebei Hengda Sealing Materials Co., Ltd. was founded in 1987, the professional manufacturer of sealing materials, integrating the scientific research, production and sale, one of the advanced member of China Friction & Sealing Material Association. Our company is a group-enterprise which is located in Shucheng industry development area of Hejian city, has fixed assets of nearly 100 million RMB. It`s equipped with abundant technical strength and the manufacturer participated in drafting the National Standard for Testing Oil-Resisting Asbestos Rubber Sheet Methods, also, we have developed anticorrosive asbestos rubber sheet and oil resistance composite seal gasket successively, they are...