... through brand-new design, adopts new aluminum molding material. The lift table has tiny swing, because of high-strength molding material ... double column lift simultaneously, controlled by limit switch, and towed by two chains to ensure safety3) Both of the platform/ground control ... .1-6100700*65060007500400SJYL0.1-8100700*65080009500450SJYL0.1-10100700*6501000011500500 aluminum aerial work platform