UNE EN 22858-1994 End-suction centrifugal pumps (rating 16 bar) Designation nominal duty point and dimensions (ISO 2858 1975)《轴向吸离心泵（额定压力16巴）委派，功能性和方法（国际标准化组织2858：1975）（官方版本22858：1.pdf

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