Tongyu is a famous listed company in heavy duty machinery manufacturing field. We have obtained certificates of ISO 8001, 14001 OHSAS 18001 and shipping classification society, including BV, CCS, DNV, ABS, LR, GL, KR, NK. are committed to supplying large steel forgings ...
Telephone:0086 - 152 - 5346460
Address:Fuhua street #2, High-tech industry developing zone Dezhou Shandong 251200 China