1. He was loading steel skid into container for export.
2. The first skid was loaded, placed in container previously
3. He'd like to stack new one on former skid but
4. When the forklift was stopped for pull out forklift's fork from skid.
5. It made container shaking, forklift slides ahead.
6. Forklift's fork's pierced at the next skid making damage steel sheet.