Chinese manufacturer of LPG storage tanks

If the internal and external inspection or pressure test cannot be carried out as scheduled due to special conditions, the user of the LPG storage tank must state the reasons and submit a declaration three months in advance. With the approval of the technical person in charge of the unit, the original inspection unit shall put forward handling opinions, and the provincial supervisor shall After departmental inspection and approval, the labor department that issued the “Pressure Vessel Use Certificate” can only be extended after it is filed with the labor department, but generally it should not exceed 12 months.