Ningbo Giga Technology Co., Ltd is one of the leading manufacturers and suppliers of mechanical seals in China with international advanced technology, and subsidized for the Origination of Technology and are recommended as National Key and New Product Development Project. Our products are suitable for Sintered sic, reaction-bonded sic, tungsten carbide, Alumina ceramic and Zirconia , Silicon Nitride with high purity and graphite seal faces and complete sets of mechanical seals are the major ...