| The HS folding stair is helpful for operators to conduct the loading work from the platform to the top of tank truck.
  Technical parameters
 
                      
                        | No. | Number of steps | Length B (m) | Width of channel (m) | Weight (kg) |  
                        | HS-1 | 1 | 600-1500 | 600 | 80-125 |  
                        | HS-2 | 2 | 900 | 600 | 130 |  
                        | HS-3 | 3 | 1300 | 600 | 145 |  
                        | HS-4 | 4 | 1700 | 600 | 160 |  
                        | HS-5 | 5 | 2100 | 600 | 180 |    Main features:
 
                      It is equipped a neutral equilibrium device, enabling it to hover at any angle;It is allowed to select folding stairs of appropriate length to satisfy different types of trucks;The movable steps are still horizontal no matter where they are;The parts where steps contact with the tank truck is equipped with anti-collision and cushion pads;With a compact structure, it occupies little space when it is recovered;With a large bearing capacity, it can bear the maximum bearing capacity up to 200kg;It has foot treadles, and the treadle surface adopts the toothed and grid structure.The auto-lock of reset ensures safety during use.    Schematic diagram of action
 
 Ordering requirements:Please provide the following two parameters
 Height of platform
 Distance from the edge of platform to the center of tank truck
 
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