... featuresstainless steel, vertical, double-walled, insulated, 60 degree cone bottom, dished head, beer fermentation tank.1. The inner of the fermentation tank ... steel polishes, spray finishing and so on.2. Part of dished head forms oval man way door, safety valve set up at ... : Ra≤ 0.4um)4, Cylindercone bottom shape and dished top head5, Insulation: PU foam jacket on the side and bottom(4080mm)6 ...