PIPE AND TUBE BENDING DIAGRAMS
L = Arc length (outside)
R = Rise (inside)
D = Tube outside diameter
t = Tube wall thickness
a = First bend arc angle
b = Second bend arc angle
A = First tangent
B = Straight between bends
C = Second tangent
D = Tube outside diameter
H = Height of offset
L = Length of offset
R1 = First radius
R2 = Second radius
t = Tube Wall Thickness
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