Reaction vessels made using the spiral technology are sturdy, temperature resistant ( HDPE 90Â°C & PP 110Â°C) and non-corrosive and almost maintenance free. For special purposes FRP reaction vessels can also be used. We also provide complete reaction vessel assembly which includes M.S. Structure required to hold the vessel, agitator and gear box assembly. HDPE FRP & PP FRP Reaction Vessels are also fabricated for special purpose.