At present, in the installation and construction of large storage tanks, hydraulic lifting equipment is widely used, which has the advantages of lifting balance, centralized control, simple operation, high efficiency, accurate adjustment of counterpart clearance, convenient adjustment of lifting height, high engineering quality, is conducive to shorten the construction period, low cost, good economic benefits and so on.

A. The so-called three-stage advanced hydraulic jacking system is a kind of lifting machine that jacking tank walls in the storage tank prefabrication.

B. The so-called two-stage advanced hydraulic jacking system is a kind of lifting machine that jacking tank walls in the storage tank prefabrication.

C. The so-called simple chuck type hydraulic jacking system is a kind of lifting machine that jacking tank walls in the storage tank prefabrication.

D. The so-called simple chain type hydraulic jacking system is a kind of lifting machine that jacking tank walls in the storage tank prefabrication.