... and carbon steel 5.High profits Operateing principle 1.When oil press is on work, material enters the extruding chamber from ... is quite strong friction among press screw, chamber and the oil materials. 3.On the other hand, root diameter of the ... .2KW heater3KW3.3KW3.8KW4KW The above parameters is according to oil material that is refined, separated, flaked, steamed and fired, and ...