打桩木栅栏柱(Pile Driving Wooden Fence Posts) 资源编号 :49040623 格式:jpg 文件体积 :141k 分辨率 :640 x 480 爱给网提供海量的英国街景照片库 (cc协议)资源素材免费下载, 本次作品为jpg 格式的打桩木栅栏柱(Pile Driving Wooden Fence Posts), 本站编号49040623, 该英国街景照片库 (cc协议)素材大小为141...
Anti snow drift fence with textile band - has two piece post for ease of drivingThe snow or wind screen has a fabric band (1) maintained vertically by metal posts anchored in the ground and stayed. The lower part of the two part posts if a solid metal bar with a stake pointed at ...
For might driving safety on motorways, the screen (10) providing protection from glare consists of guard fence (12) along the edge of the roadway, carried by posts (11), with optical screens (13) fitted above them. Posts, guard fence and... MR Von 被引量: 6发表: 1979年 Effect of ...
The post may be fitted into a separate metal base plate 24, which rests on the ground and is cruciform or disc-shaped, or the post may be fitted to a triangular plate embedded vertically into the ground. Various tools are described which are used to insert the post into the ground ...
The barrier is made of prefabricated, concrete sections (1) with metal rings (7, 8) at each end. Tubular or solid posts are passed through these rings of two adjacent sections and hammered into the ground (15) to secure the barrier in position. Each section has a central, vertical hole...