Ningbo Dongya Mechanical Seal Manufacturer is a professional manufacturer and exporter of mechanical seals, pumps, gaskets, o-rings and other sealing materials. the largest diameter of which can reach **0 mm, The products are widely used in many fields, such as spacecraft machinery, metallurgy, printing and dyeing, foodstuff, pharmaceutical, auto industry and so on .Ningbo Donglian is able to design, measure and produce all kinds of out-of-standard and special mining mechanical seals. Over **5 staff have been employed ,including *8 technical personnel and engineers. Depending on technical and managerial personnel, computer-controlled management, advanced equipment for producing and testing mechanical seals, the company has been granted ISO ***2 and ISO********0. The products are very popular home and abroad, exported to over *0 countries because of excellent quality, good after-sales service and more competitive price. Its products have come into the list of the manufacturers of excellent quality in Zhejiang Province. Contact Now