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公稱尺寸 ／mm | 外徑 ／mm | 外徑允許偏差 ／mm | 壁 厚 ／mm | 壁厚允許偏差 ／mm | 理論質(zhì)量(不計(jì)管接頭) ／(kg／m) |
13 | 12.70 | ±0.20 | 1.60 | ±0.15 | 0.438 |
16 | 15.88 | ±0.20 | 1.60 | ±0.15 | 0.581 |
19 | 19.05 | ±0.25 | 1.80 | ±0.20 | 0.766 |
25 | 25.40 | ±0.25 | 1.80 | ±0.20 | 1.048 |
32 | 31.75 | ±0.25 | 1.80 | ±0.20 | 1.329 |
38 | 38.10 | ±0.25 | 1.80 | ±0.20 | 1.611 |
51 | 50.80 | ±0.30 | 2.00 | ±0.24 | 2.407 |
64 | 63.50 | ±0.30 | 2.50 | ±0.30 | 3.760 |
76 | 76.20 | ±0.30 | 3.20 | ±0.35 | 5.761 |