| 附錄二 加強型及沖孔型螺旋風管規格表 | |||||
| 管 徑 ∮ | 螺旋間距 | 補強溝間距 | 厚 度 (mm) | ||
| inch | mm | mm | mm | 0.5 | 0.6 |
| 6" | 150 | 120 | 30 | ● | |
| 7" | 175 | 120 | 30 | ● | |
| 8" | 200 | 120 | 30 | ● | |
| 9" | 225 | 120 | 30 | ● | |
| 10" | 250 | 120 | 30 | ● | |
| 11" | 275 | 120 | 30 | ● | |
| 12" | 300 | 120 | 30 | ● | |
| 13" | 325 | 120 | 30 | ● | |
| 14" | 350 | 120 | 30 | ● | |
| 15" | 375 | 120 | 30 | ● | |
| 16" | 400 | 120 | 30 | ● | |
| 17" | 425 | 120 | 30 | ● | |
| 18" | 450 | 120 | 30 | ● | |
| 19" | 475 | 120 | 30 | ● | |
| 20" | 500 | 120 | 30 | ● | |
| 22" | 550 | 120 | 30 | ● | |
| 24" | 600 | 120 | 30 | ● | |
| 26" | 650 | 120 | 30 | ● | |
| 28" | 700 | 120 | 30 | ● | |
| 30" | 750 | 120 | 30 | ● | |
| 32" | 800 | 120 | 30 | ● | |
| 34" | 850 | 120 | 30 | ● | |
| 36" | 900 | 120 | 30 | ● | |
| 38" | 950 | 120 | 30 | ● | |
| 40" | 1000 | 120 | 30 | ● | |
| 44" | 1100 | 120 | 30 | ● | |
| 48" | 1200 | 120 | 30 | ● | |
| 52" | 1300 | 120 | 30 | ● | |
| 56" | 1400 | 120 | 30 | ● | |
| 60" | 1500 | 120 | 30 | ● | |
| 64" | 1600 | 120 | 30 | ● | |
| 68" | 1700 | 120 | 30 | ● | |
| 72" | 1800 | 120 | 30 | ● | |
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