管子外径（直径φ）×
壁厚（mm) | 21.3×2.75
26.7×2.75
33.5×3.25
42 ×3.25
48×3.5
60×3.5 | 21.3×2.75
26.7×2.75
33.5×3.25
42 ×3.25
48×3.5
60×3.5
75.5×3.75
88.5×4.0 | 21.3×2.75
26.7×2.75
33.5×3.25
42 ×3.25
48×3.5
60×3.5
75.5×3.75
88.5×4.0
108×4.5 | 21.3×2.75
26.7×2.75
33.5×3.25
42 ×3.25
48×3.5
60×3.5
75.5×3.75
88.5×4.0
108×4.5
114×5.0 |