計算公式：W(kg/m)=0.00785*邊厚*（2邊寬-邊厚） ｜ 型號｜尺寸(mm)｜長度 (m)｜理論重量 (kg/m)｜ 邊寬｜邊厚｜ 2｜20｜34｜3-9｜0.8891.145｜ 2.5｜25｜34｜3-9｜1.1241.459｜ 3｜3030｜34｜3-9｜1.3731.786｜ 3.6｜36｜345｜3-9｜1.6562.1632.654｜ 4｜40｜345｜3-9｜1.8522.4222.976｜ 4.5｜45｜3456｜4-12｜2.0882.7363.3693.985｜ 5｜50 ｜3456｜4-12｜2.3323.0593.7704.465｜ 5.6｜56｜3458｜4-12｜2.6243.4464.2516.568｜ 6.3｜63 ｜456810｜4-12｜3.9074.8225.7217.4699.151｜ 7｜70｜45678｜4-12 ｜4.3725.3976.4067.3988.373｜ 7.5｜75 ｜567810