Robust cast iron valve body with a fabricated rotor, polyurethane adjustable replaceable blades and a direct drive.
铸铁阀体配合支架式转子，聚酯易拆除叶片和直驱方式。
The motor rotor shall be of die cast aluminum, fabricated copper or their respective alloys.
电机定子应该采用压铸铝，装配铜或其各自的合金等材质制造。
The flywheel composed of two-layer rotor is fabricated usually by extrusion of the inner rotor and the outer rotor together, so there is a pre-displacement in the interface between the two layers.
因为两层转子结构飞轮一般是由内、外两层转子通过挤压组合而成，故在两层的接触面上就有初始位移。
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