... wire and carbon black 2.ISO,CE 3.High Oil Yield 4.No residue after one batch 5.Save energy ... the Auto-feeder, reactor, catalytic room, condenser pipe, oil-water separator, three condensers, oil tank, Anti-back fire , buffer tank,negative pressure ... chamber are especially for welding.3. Vacuum system will prevent oil gas from going back to reactor and causing accident.4. Professional ...