Licence kabhi bhi ni banta dost uske liye Jab state government wale boiler comity baithegi Tab banta hai Aur year me sirf ek bar hi OK.... Jab bhi boiler comity baithegi to banega abhi ni banega
Dekho kam dono ka same hai but purging ke liye steam available hai to N2 ni used karte costly hota hai..... Single unit hai jaha par steam aapko initial purging ke liye ni mil raha hai waha N2 se purging kiya jata hai
Steam cog line purging me use karte hain kyunki cog gas me damar alkatara hota hai jo jam ke line me baith jata hai damar ko pighlane ke liye steam use karte hai