弯管尺寸
薄管,厚管,瓦斯管
管模 管径 管模 管径 A15 15.9 B70 75.2 A19 19.1 B82 87.9 A25 25.4 SGP-15 21.7 A31 31.8 SGP-20 27.2 A39 38.1 SGP-25 34.0 A51 50.8 SGP-32 42.7 A63 63.5 SGP-40 48.6 A75 76.2 SGP-50 60.5 B16 21.0 SGP-65 76.3 B22 26.5 B28 33.3 B36 41.9 B42 47.8 B54 59.6 |