packing seal

短语词组

短語

• packing box seal 填料函密封
• lumped packing -seal 集裝式填料密封
• Packing oil seal 迫緊油封
• STEM PACKING or SEAL 填料或密封
• packing g seal 密封墊
• packing shaft seal 填料軸封
• packing water seal 水封
• HYDRAULIC PACKING & SEAL 國別
• double -stage packing element seal 雙級膠芯密封
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