Presents the cleaning of boiler by EDTA natural cycle method which features low cost, energy and time saving and no damage to equipment.

• 通过EDTA自然循环法清洗锅炉的实践证明，为经济、省时、省力、无设备损害，保证清洗效果，宜采用EDTA自然循环法清洗锅炉。