Refrigeration coil, ammonia evaporators, freon evaporators 1. Industry quick freezer or chiller2. Aluminum Fin with Aluminum tube, Stainless Steel tube3. Big capacity range from 50kw to 200kw/ pcs4. Variable fin space from 8 mm to 40mm5. Ammonia Coil : over feeding system, 4: 1 or 5:1 recycle6. Use for hot gas defrost, testing pressure 20bar. stainless steel tube evaporator