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5.2 Pressure Part
5.2.1 Steels for pressure part shall conform to GB 150,JB 4732 and TSG R0004.
5.2.2 The detailed rules of material selection for pressureparts shall conform to SH/T 3075.
5.2.3 Material selection for major pressure parts used in plants for processing high sulfur crude oils shall conform to SH/T 3096.