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我厂从日本油研公司引进生产的PV2R型低噪声高压叶片泵,其定子是Cr12MoV钢圆环类锻件,如图1所示。
Our factory imported the PV2R low-noise high-pressure vane pump from Japan Yuken Co., Ltd. Its stator is Cr12MoV steel ring forgings, as shown in Fig.1.