The galvanizer who is a manufacturer for electrical tower and accessories since 1988., Most of galvanizing products were angle bar, plate bar, steel structure, and other steel from outside.
In beginning the galvanizing technology was from Japan, using horizontal flame furnace. They change the fuel to LPG and made "high velocity" furnace, kettle by themselves in year 2000 due to environment request.
Change to our furnace:
the kettle got heavy corrosion, zinc make a hole from corner of kettle in the night time in July 2021 when people found, zinc had full of the exhaust pipes. this is not first time kettle leaking but this time was the worst. so president decide to change whole furnaces even need to shut down a while.