Metal Roof Beam

On March 7, a batch of hydraulic props and metal roof beams are loaded into the third workshop of China Coal Group's intelligent equipment production and manufacturing, and will be sent to a mine in H

On the morning of May 6, a batch of suspended single hydraulic props and Metal Roof Beam were loaded in the third workshop of China Coal Group's intelligent equipment production and manufacturing, and

Recently, the DFB (1400-4400 standard specifications)/300, DJB600/470, DJB800/420, DJB (1000, 1200)/300 metal roof beams independently developed and produced by China Coal Group, of which 4 types of h