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管径 A B D L CH 4/2.7 M5 16.5 9 18 8 4/2.7 M6 16.5 9 19 8 4/2.7 1/8 23.3 14 27.5 14 5/3. M5 16.5 9 18 8 5/3. 1/8 23.3 14 27.5 14 6/4. M5 16.5 9 18 8 6/4. M6 16.5 9 19 8 6/4. 1/8 23.3 14 27.5 14 6/4. 1/4 25.3 18 30 17 6/4. 3/8 26.8 21 30.5 19 8/6. 1/8 24.7 14 27.5 14 8/6. 1/4 27.6 18 30 17 8/6. 3/8 27.7 21 30.5 19 8/6. 1/2 31.2 26 31.5 24 10/8. 1/8 27.5 14 27.5 14 10/8. 1/4 29.5 18 30.0 17 10/8. 3/8 30.5 21 30.5 19 10/8. 1/2 34 26 31.5 24 12/10. 3/8 31.5 21 30.5 19 12/10. 1/2 35 26 31.5 24 15/12.5 1/2 36.5 26 31.5 24