Steel rotomolding polyethylene (PE) with the overall molding no welds, impact resistance, high temperature, high strength, anti-aging, no leakage, non-toxic, long life, in line with national health standards, etc.. Media Operating Temperature: -25 ℃ ~ 80 ℃ medium working pressure: positive pressure 0.6Mpa 2.5Mpa negative pressure negative pressure at room temperature for 75Kpa. Corrosion resistance: (Taiwan hydrochloride of the non-oxidizing acid, sulfuric acid, hydrofluoric acid), nitric acid, alkali and salt solution has a good corrosion resistance, but intolerant of concentrated nitric acid, concentrated sulfuric acid, and other strong oxidizing agent corrosion. Usually good corrosion resistance to organic solvents, at room temperature.