Koshin Gear Pump ready stock Batam. GL 13-5, GL 20-5, GL 25-5, GL 32-5, GL 40-5, GL 50-5. Pump only or Pump c/ w electric motor 380 V, 3 phase, 50 hz. Suitable for diesel oil, lube oil, hydraulic oil and all oil with maximum viscocity 500 cst. Size start from 0.5 inch to 2 inch. Pump Material is cast iron.