Jinhua blue gas tank cannot be used. Jinhua strictly manages liquefied gas cylinders, and self-use cylinders are no longer inflated and put into use. Gas tank (liquefied petroleum gas cylinder) is a kind of cylinder for storing gas. The cylinder wall thickness is about 2.5 mm, the internal pressure is 0.5 ~ 1.2 MPa, the safe service life is 15 years, and it needs to be checked regularly every four years.