... oil, hydrualic oil recycling machine, oil decolorization, deacidification, dealkalizing.-- oil vacuum distillation plant,-- oil refinery, diesel production line,-- waste tyre, rubber, plastic pyrolysis plant, cracking ... .Waiting for your news. Diesel production line,treat waste engine oil ,motor oil into diesel.sludge oil recycling machine,crude oil refinery,CE certific ...