Profile: NINGBO UNIQUE SEAL LIMITED.carries a wide range of single and multi spring mechanical seals, cartridge seals, FLYGT pump seals, mechanical seal, pumps, gaskets, O-rings, OEM & other sealing material. These products are widely used in many fields, such as spacecraft machinery, metallurgy, printing & dyeing, foodstuff, auto industry and pharmaceuticals. We design, measure & produce all kinds of out-of-standard and special mining mechanical seals.