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| ADD： |
Chengnan Developing |
| TEL： |
0575-88322482 88321669 |
| Fax： |
0575-88323469 |
| Mobile： |
13357597179 |
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13355753802 |
| Mail： |
sxtjgu@163.com |
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Spiral duct machine for which industry |
| Automatic Tube Forming Machine (commonly known as spiral duct machine) is currently widely used in air conditioning for this product, ventilation pipe industry, construction, filtration, environmental protection, dust, etc. |
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