white PTFE Back up Ringds
We use innovation to increase the added value of products and technologies, and emphasize the high added value of our Bulk rubber metal bonded seal, ED-Ring. Zhonggao Seal Technology is one of the leading white PTFE Back-up Ringds manufacturers and suppliers in China. Our factory has a wide varieties of white PTFE Back-up Ringds products in stock. Please be free to buy the bulk products from us. And we will also offer the customized service if necessary.