桶的牙齿

TongDa established a Group company named Ningbo TongDa International Group in 2006, in order to strengthen its management upon the manufacture, technique, and trading. It includes 6 subsidiary companies. TongDa Group focuses on the technique of Lost-wax and Lost Foam castings. The materials that we are dealing with are the carbon steel, alloy steel, ductile iron, grey iron and so on. Our OEM products are widely used in the industrials of Automobiles, G.E.T., Forklifts, Marines and Railways. And 85% of these parts are exported overseas through our Inrise Trading Company. TongDa Group owns a professional team of the engineers to do research on the variety of the materials and also develop the customers’ OEM products. In order to ensure the quality of our products, Tongda built a Lab which has the equipments like, X-ray tester, CMM, Spectrum Analysis Instrument, Metallographic Examination Instrument, Magnetic Particle Inspector, Hardness Tester, Impact Test Machine, and Universal Strength Tester. TongDa Group has achieved a good reputation at home and abroad with its competitive prices, reliable quality, on-time delivery and good after-service. Tongda also aims at becoming a leading castings’ manufacturer in China.