Chinese Pressure Equipment Certificate China Stamp A2, D1 / D2
The Chinese Pressure Equipment Certificate provides for an overpressure of ≥ 1 bar, a volume of V > 30 litres, an internal diameter of Di ≥ 150 mm and a pressure-volume ratio of pD*V > 25 bar*l. For values that fall below these criteria, the object can be manufactured without a permit.