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ASME磅级ASMEClass15030040060080090015002500公称压力MPa0.6MPa1.0MPa1.6MPa2.0MPa2.5MPa4.0MPa5.0MPa6.4MPa10.0MPa-15.0MPa25.0MPa42.0MPa公称压力PNPN6PN10PN16PN20PN25PN40PN50PN6.4PN100-PN150PN250PN420
