Jual Chemical Boiler Options
Empty the boiler: Shut off the boiler and permit it to chill. The moment it cools down, you may drain the boiler and take away any sediments. This results in a clear surface area to the chemicals to work on.copper sulphate / cooper sulfate / prusi / trusi zak powder 25kg copper sulphate / cooper sulfate / prusi / trusi zak powder 25kg Rp 123apa itu