Material: stainless steel AISI 304 thickness: cylinder 3mm, bottom 4mm Inner surface treatment: cold-rolled lates, 2B surfac Material:stainless steel AISI 304thickness: cylinder 3mm, bottom 4mmInner surface treatment:cold-rolled lates, 2B surface treatment, welds grinded to Ra 0,8 µm.External surface treatment:cold-rolled plates grinded to SB.Heating:Internal Steam Boiler - max.pressure 4 ...