Pressure Vessel (D grade) include reaction pressure vessels, heat exchangers pressure vessels, separation pressure vessels, storage pressure vessels

 D1: First class pressure vessel
D2: Second low, medium pressure vessel
Low pressure:0.1MPa≤Design pressure<1.6Mpa
Medium pressure:1.6MPa≤Design pressure<10Mpa
Products include reaction pressure vessels, heat exchangers pressure vessels, separation pressure vessels, storage pressure vessels

TECHNICAL CHARACTERISTICS FOR Pressure Vessel (D grade)
It has A2 grade pressure vessel manufacturing qualifcation issued by the AQSIQ.
Product manufacturing requirements to meet the relevant national mandatory laws and regulations.
Advanced product design, production equipment and technology, use modem management methods to conduct a comprehensive quality management for the A2 class production and testing process.
Manufacturing and inspecting strictly in accordance with the pressure vessel standands, to ensure that the product reached the top level.