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| 聚四氟乙烯涂层膜 | |||
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| 聚四氟乙烯涂层 | |||
| 特氟隆涂层 (混凝土钢模接触面) | |||
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| 混凝土钢模接触面特氟隆涂层 | |||
| teflon coating: 1 phrase in 1 subject |
| Technology | 1 |
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