Some suggestions of cantilever installation of steel box shapedgirder are given.
每段预拼的箱梁安装在小平车上。
2
The utility model relates to an elevated track and in particular relates to a U-shapedgirder for an elevated track.
本实用新型涉及高架轨道,尤其涉及高架轨道u形梁。
3
Pit-less type platform scale, checked iron surface plate (surface plate of SST models is smooth plate) combined with welding U-shaped steel girder formed a higher strength and reliable platform scale.