Profile: WenZhou HengZheng Seal Manufacturing Co., Ltd. specializes in the production of mechanical seals. We develop engineering, medium-sized mechanical and mechanical seals. These seals are applied in all kinds of water, industrial, chemical, automotive cooling and various other pumps. Our products include auto-engine pump, O-ring mechanical & elastomer bellows, mechanical seals and seal materials & packings. Our seal materials & packings are available in rubber, ceramic, carbon and silicon carbide materials. Our NBR rubber seals have resistance against oil, pressure and abrasion. They have high elasticity and mechanical strength. These are suitable for general hydraulic and pneumatic seals. Our silicon rubber seals have resistance against heat & freezing cold. We are specialized in manufacturing mechanical seals for pumps, vessels, auto water pumps, compressors and for other applications.