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| 81. | self - acting seal |
| 自紧密封 |
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| 82. | packing box seal |
| 填料函密封 |
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| 83. | upper seal bore |
| 上密封筒 |
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| 84. | affixation (seal, signature) |
| 盖印；署名 |
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| 85. | upper seal support |
| 上密封座 |
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| 86. | steam seal gland |
| 汽封|汽封装置 |
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| 87. | teflon seal ring |
| 聚四氟乙烯密封环 |
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| 88. | Garlock oil seal |
| 加氏油封 |
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| 89. | tamper proof seal |
| 保护封套 |
|
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| 90. | double oil seal |
| 双油封 |
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