后张无粘结预应力装配梁
unbonded post-tensioned precast concrete beams
装配式混凝土简支梁
prefabricated concrete simply supported beam
装配式混凝土板
assemble type concrete slab
装配式管型通道
prefabricated arch culvert
prefabricated tubular channel
装配式公路桥墩
prefabricated highway pier
装配式公路钢桥
fabricated steel bridge of highway
Highway assemble steel-bridge
fabricated highway steel bridge
Prefabricated steel bridges
assembled highway steel bridge
prefabricated highway steel bridge
bailey bridge
装配式工业厂房
prefabricated industrial plant building
装配式工业
assembly type of industry
装配式钢筋混凝土桩
prefabricated reinforced concrete pile
装配式钢筋混凝土结构
precast reinforced concrete construction