Bailey trussed girder is a kind of material for war preparations and is under the management of highway departments with full set of equipment and low cost, which can be used as a replacement of thick ropes.

• 贝雷桁架梁作为一种战备物资,由各地公路部门代管,设备配套、价格低廉,是一种可以代替缆绳的工具。