... easy operation;smooth and steady/safe 4. 3.5T/4T options 5.1 year warranty Two post lift(special character)STRONG1. 5mm "international ... Anti-High temperature, high strength oiliness macromolecule nylon slide block.4. Require no less than 150mm cement on the ground, ... , from column ladder safe to close protection by dynamic hydraulic pressure, single side electrical release, ensure double safe staying ...