I want to do a repair shop, the workshop is like this, due to a basement, and the owner in order to save costs, the first floor of the ground floor that is the basement of the roof is composed of hollow. I would like to install the lift on the above, do not know feasible feasible.
Not to re-cast concrete, C35 thickness of at least 20 cm, the lift on several expansion bolts fixed, the ground is very strict, or something that is the event will be overturned people can not save this
