... CE,ISO-14001 2.energy-saving 3.Oil-water sepreater 4.High oil out-put yield 5.new mode ... ), technology is very important, we had been doing oil refining for ten years, actually, have been experienced times of ... is by-product, if it is made by plastic oil refining, it can be made of coal and brick ... . If it is made by tires oil refining, it is called carbon black, it is ...