1.Double Aluminum Alloy Mast Lifts is easily pushed around 2.Compact mainbody,light weighted,safe and reliable 3.ISO ... ground, just need press stop button, it can stop at any point if you want.4.It mainly divided into single mast ... supply of Single Aluminum Alloy Mast LiftsLocal power is available at the working sites(110V,220V,380V) , they also can be ...