Dongying Tousin is a professional steel casting manufacturer has his own foundry, CNC machining department and handcraft polishing factory, came into existence from the year of 2003.
       As a major manufacturer of investment castings, we adopt the lost-wax process to serve a huge variety of markets that require metal parts in stainless steel, carbon steel and different kinds of alloy steel. Including industrial machinery parts, architecture castings, pump valve bodies&accessories, impeller, hardware tools, door&window fittings, marine hardware, pipe fittings, auto parts, textile machinery parts, sport facility parts, pneumatic tools parts, fluid equipment parts, food machinery parts, air compressor parts, electric machine&hardware fittings, mining& earthmoving machinery accessories, etc. We are able to supply precision castings in many conditions involving heat treatment, machining, handcraft polishing, electro polished and so on.
        Excellent employees and advanced management guarantee our superb products

at most competitive prices. We currently have more than 300 employees and capacity of over 800 MT precision castings per year, of which over 90% are exported to Europe, America, Australia and Japan.

        Our tenet is “Quality is our base and client is our support”.  The soul of   Tousin is “Faithful, Quality, Develop, Advancement ”. This idea runs through every aspect of operation, from company management to product manufacturing, quality control and inspection; from employee training and technique requirement to customer service, we keep pursuing precision, which makes us different from others. We aim to make it easier for our customers to purchase quality products from a reliable manufacturer that passed ISO9001, and we are sure you will find it worthwhile to choose us as your supplier.
        Our products are in reliable quality with competitive price. We warmly welcome every friend both domestic and abroad to share the mutual development.

        We have both metallurgical engineer, quality control technician Staffs and spectrometer chemical analysis machine, three-dimensional dimension inspection machine to ensure good quality. Relying on our factory, you can not only gain the competitive product price, but also can gain the technical support for product quality improving and new product developing from our engineer team.
        To assure top quality, we have created a unique QC system based on ISO9001 and four “S” quality control principle of Japan . We maintain stringent quality controls throughout all phases of material preparation, production and final test and inspection. Under this system, annual 800 tons of castings keep first-class quality. Among which, 95% is exported to international market and win good reputation.

Over 90% are exported to Europe, America, Australia and Japan.