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Boiler pulverized coal smoke duct equipment
Name：Ramp explosion door dd4321-dd4
Details
| 标号 | DD4321 | DD4322 | DD4323 | DD4324 | DD4325 | DD4326 | DD4327 | DD4328 | |
| 公称通径DN | 毫米 | 300 | 400 | 500 | 600 | 700 | 800 | 900 | 1000 |
| D | 325 | 420 | 530 | 630 | 720 | 820 | 920 | 1020 | |
| B | 427 | 528 | 645 | 745 | 843 | 943 | 1053 | 1153 | |
| B1 | 563 | 706 | 866 | 1008 | 1142 | 1285 | 1424 | 1578 | |
| H | 572 | 673 | 782 | 882 | 976 | 1075 | 1174 | 1279 | |
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