National Steel Materials Testing Center
Technology Center sa Benxi Iron & Steel Group Co., Ltd
Yantai Branch, 52 Institure sa China Industries Group
Wuhan Iron ug Steel Group Technology Center Inspection
Baoshan Iron & Steel Co., Ltd. Espesyal nga Steel Branch
School of Chemistry ug Chemical Engineering, Shandong University
Shandong Metallurgical Research Institute Test Center
Shandong Metallurgical Product Quality Supervision ug Inspection Station
Jinan Iron ug Steel Group Corporation