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| Features: |
| 1) Size: 5", 6", |
| 2) Material: cast iron |
| 3) Straight and Bend |
| 4) High strength and density without defect |
| 5) Easy to install and maintain |
6) Long lifetime, fireproof and low noise rate
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（Standard chimney section ，Elbow） |
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| 7) temperature 300℃～600℃ |
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