NINGBO SUNWELL SEALING MATERIALS CO.,LTD is one of the biggest sealing and heat preservation products manufacturers in China. SUNWELL is a professional manufacturer engaged in the research, development, production, sale and service of Metal Gaskets, Non-metallic Gaskets, Braided Packings, Compressed Gasket Sheets, Sealing Equipments, Insulation Products, Hydraulic Sealing products, etc.
SUNWELL is located in Cixi,Ningbo,China. And have convenient transportation access. Dedicated to strict quality control and thoughtful customer service. Our experienced staff members are always available to discuss your requirements and ensure full customer satisfaction. In recent years, our company has introduced a series of advanced equipment, including fully automatic spiraling machine, CNC machines, double jacketed machine, full range of sheeting machines. In addition, we have attained ISO9001:2008 certificate.
|O-ring is a important kind of sealing products which is usually made of springing material and through the molding way to make it in the ring shape. O-ring is good at both in static seal and dynamic seal, main material contains: NBR, SR, VITON, SILICON, PTFE, HNBR, PU etc. |
Care should be taken while selecting the back-up ring material since other physical or chemical factors might be producing the disfunction of a seal