Ningbo Yinzhou Aute Seal factory is the most original manufacturer in China and also is one of leading suppliers of metal parts for mechanical seals. Every day, we manufacture various out-of standard products according to customer's special designs.

    We have more than 80 employees and accumulate thousands of drawings about metal parts, such as sleeve, cover, retainer, housing, gland plate, flange, shaft, stamping and so on. Our products outside diameter dimension can get 630mm.