How much descaling agent is used for derusting of 4-ton heating boiler?

In fact, this thing does not stipulate how many chemicals must be used. First, look at the main components of scale in your furnace, second, the thickness of scale in the furnace, and third, the degree of corrosion in the furnace. You can't easily add chemicals to the boiler to remove scale, so be careful to punch holes in the boiler to prevent corrosion ... 10 12848398 Add QQ. ...