it is suit for chmical , cosmetic, medical, beverage etc. The storage tanks acpacity,100L, 150L,200L,300L, 500L,1000L, 2000L, 3000L,4000L,5000L. Ect. suggested to put outside material be SUS316L or SUS304-2B attached device of the storage tank as followsThe inIet and outlet.thermogratoh.fluid level indicator. Dustproof air hole,CIP cleaning ball valve