Elastic ball The ball valve is flexible, suitable for high temperature, high pressure media.
弹性球球阀的球体是弹性的，适用于高温、高压介质。
Mechanical transmissions. Couplings. Calculation of flexible or elastic couplings.
机械传动。联结器。挠性和弹性联结器的计算。
Mechanical transmissions. Couplings. Calculation of flexible or elastic couplings.
机械传动。联结器。挠性和弹性联结器的计算。
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