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Tongyu has obtained three national grade patents

2017-08-25   from:Tong yu Heavy

         Aug 2017, our independent developed “Forging technical of big shaft at uniform temperature” was approved as national patent of invention. “Filter made in refractory materials” and “A special tool for cleaning the slab & smoke during welding in deep-hole” were approved as national utility model patents.

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上一篇:Tongyu has successfully passed the site reviewe to update the Safety Registration Certificate for steel forged products used in Bolier and Pressure Vessel by experts from China Standardization Committee on Boilers and Pressure Vessels
下一篇:Tongyu obtained the Yucheng philanthropy Special Contribution Award, and Chairman of Board Mr Si Xingkui obtained the “Charitable Star”Award