... degumming, dehydration, deacidification, decolorzation, dewaxing and deodorization.oil refining machine Main Equipment :Decoloration tower, deodorization tower, leaf filter, frame ... .well sealing on every junction parts to prevent gas leak,no smellyc.Longer life : Using Q345R special steel plate ... saving:1. well sealing for heating system ,no gas leak and saving fuel.2. the exhaust gas will be ...