Keel block (Shipyard and Dry Dock)
A built up keel block 1.2 m tall on a 1.4 m concrete base: cross laid oak timbers under a softwood capping piece, with a steel banding strap, for taking a ship's keel on a dock bottom.
- 格式
- GLB
- 文件大小
- 52 KB
- 三角面
- 84
- 许可
- CC0 1.0