Factory pressure test is a key inspection procedure before equipment delivery. Water or air pressure tests are carried out on tanks, pipes, reaction kettles, etc., to check for leakages in welding seams and seals, and to verify the overall strength and tightness of the equipment. The test is conducted in accordance with national standards with pressure holding and full data recording. Only qualified products can be delivered, which effectively eliminates potential risks and ensures long-term safe and stable operation under actual working conditions.