A new 120-ton furnace at a steel factory exploded, injuring four, in northern China on May 18.<br /><br />The CCTV clip, captured at Lingyuan Steel Factory, shows smoke and sparks emerging from the furnace while several workers stand in front of it before an explosion engulfs the camera.<br /><br />According to local reports, the group was discussing a water leak problem.<br /><br />Three people had minor injuries and one suffered waist fracture.<br /> <br />++CLIENTS PLEASE NOTE: THIS VIDEO HAS BEEN LOOPED++
