... three phase four wires Use: can be used for the open type and the soundproof type , automatic type Output range8kw ---- ... phase load current and frequency display ii) Water temperature, oil pressure display iii) Fuel level, fuel temperature display iv) Audible and visual ... k) Set shock absorber 7) Delivery , payment , warranty: Delivery: open type (10-15 days); silent type (15-20 days). Payment ...