Chubu kutentha exchanger ntchito kupanga makampani ammonia kale, koma chifukwa cha ubwino wapadera wa mbale kutentha exchanger, monga mkulu kutentha kuwombola dzuwa, malo ang'onoang'ono, kukonza yabwino, kupulumutsa mphamvu, mtengo wotsika, tsopano kupanga makampani ammonia ndi zambiri. ndi otchuka kwambiri....
Werengani zambiri