National Steel Materials Testing Center
Malingaliro a kampani Benxi Iron & Steel Group Co., Ltd
Nthambi ya Yantai, 52 Institure of China Industries Group
Wuhan Iron ndi Steel Group Technology Center Inspection
Baoshan Iron & Steel Co., Ltd. Nthambi Yachitsulo Yapadera
Sukulu ya Chemistry ndi Chemical Engineering, Shandong University
Shandong Metallurgical Research Institute Test Center
Shandong Metallurgical Product Quality Supervision and Inspection Station
Jinan Iron and Steel Group Corporation