Search

NEWS

SUBORDINATE SUBSIDIARIES 

Products & Facility

WeChat

ABOUT US

Quality Assurance

R&D

Investor Relations

JOIN US

Sales And Service

     @ 2018 Tongyu Heavy Industry Co., Ltd Stock code:300185

    鲁ICP备13004417号-1 鲁公网安备 37148202000125号 Powered by www.300.cn

Mobile website

QUALITY ASSURANCE

China Classification Society

The certificate is the China Classification Society (CCS) factory accreditation certificate, issued by the China Classification Society. Certificate application:Ingot - carbon steel and carbon manganese steel material, the maximum tonnage of 200 tons; Alloy steel material, the maximum tonnage 160 tons;Forgings (including crank forgings) - carbon steel and carbon manganese steel, the maximum tonnage of 151 tons; alloy steel material, the maximum tonnage of 121 tons; crank arm of the largest tonnage of 46.1 tons; Castings - gray iron, the current recognized weight of 6.5 tons; Ductile iron, the current recognized weight of 7 tons.