国产免费一区二区,91久久精品一区,约操极品,欧美成欧美va,国产视频六区,国产永久av,五月天堂色

Company News
Changda construction group prepares equipment technology for the development of assembly building
&According to the information provided by the group machinery construction company, in recent years, in order to meet the development requirements of prefabricated buildings, the group has invested a lot of latest technology and equipment in the construction of Industrial Park, as well as in the transportation of PC parts, hoisting of PC parts and field assembly. For example, the newly added 35t truck crane and QTZ125 field tower crane, etc. With the expanding application of prefabricated buildings, new equipment technology will be added at any time to meet the increasing market demand.