跪求:哪位大神有(NFPA) T3.9.22 R2 Pump/Motor - Pressure Rating Supplement to NFPA/T2.6.1 R2-2000, Fluid Power Components - Method for Verifying the Fatigue and Establishing the Burst Pressure Ratings of the Pressure Containing Envelope of a Metal Fluid Power Pump and Motor。 深表感谢!