Manual Projector Screen,Cinema Screen,Movie Projector Screen,Pull-Down Projector Screen Dongguan Aoxing Audio Visual Equipment CO.,Ltd , https://www.aoxingaudio.com
Sichuan Construction Machinery (Group) Co., Ltd. recently successfully developed the SCM-QTD400 boom-type tower crane, which fills the gap between large and medium-sized boom-type tower cranes in China. The maximum boom length of the aircraft is 60m, the maximum lifting capacity is 20t, and the end lifting weight is 5t. It is the largest type of boom-type tower crane in China. This machine is novel in design and has a tower body structure. Lifting, slewing, luffing and walking mechanisms adopt advanced foreign technology, with the advantages of variable amplitude, accurate positioning and reliable performance. It is particularly suitable for crowded commercial areas, tower buildings and construction sites with narrow construction areas.