... spring loaded plunger 弹簧加载柱塞 spring-loaded plunger 弹簧柱塞 spring plunger stripper 弹簧柱塞式卸料板 ...
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V-packings: Self-adjusting, spring-loaded, double V-packings maintain constant high pressure seal compression and extend seal and plunger life.
密封：自动调节，弹簧底座，双层V-密封维持高压密封和延长密封与柱塞寿命。
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