piston ring seal

短語(yǔ)詞組

短語(yǔ)

• piston ring type seal 漲圈式密封
• piston ring seal system 活塞環(huán)密封系統(tǒng)
• piston o -ring seal 柱塞O型密封圈
• Piston seal ring 活塞封
• dummy piston seal ring 平衡活塞汽封
• triple seal piston ring 三重密封活塞環(huán)
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