On the afternoon of July 8, 7th training and financial knowledge training course for senior management cadre of Shandong China Coal Group, which organized by Jining City Industrial And Commercial Voca
A self-contained breathing apparatus, or SCBA, sometimes referred to as a compressed air breathing apparatus (CABA), or simply breathing apparatus (BA), is a device worn by rescue workers, firefighter
General rail, refers to the track laying of railway lines, special line, bend and tunnel. Among them, the standard rail length contains 12.50 meters and 25.00 meters two kinds, the laying curve track,
©Shandong China Coal Import & Export Co., Ltd. © 2017
Address: No. 11, North of Kaiyuan Road, High-tech Zone, Jining City, Shandong Province, China
Executive Editor: Zhang Wen / Editor: Linda Zhang