日本免费一区二区三区中文_免费国产成人高清在线观看视频_欧美精品一区区三区在线_在线播放无码成动漫视频

&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.