/ XINSHENG INDUSTRIAL
Tongyu Heavy Industry Co., Ltd. was awarded "key enterprise of cast iron pipe mould in China"
Tongyu Heavy Industry was awarded as Shandong Province technological innovation demonstration enterprise in 2020
of the company won the "May 1st" labor medal and other awards of Dezhou City
Tongyu heavy industry won the title of "Excellent Organization for 40 Years of TQM in Shandong Province"