Provide heat for multi using heat unit at the same time, produce hot water steam, hot air and life water ... heat unit at the same time, produce hot water steam, hot air and life water through heat exchanger. 6 ... 3. Petrochemical: Synthesis, Response, distillation, heating, Insulation, Plastics, Hot pressing, rolling, extrusion, Vulcanization 4. Fiber: synthesis, melting, Spinning, Molded, Solid ...