C4 Stainless steel SHS and glass
H4 Steel blades with glass
H6 Half-height steel blades
H8 Steel blades with glass
M1 Closed mono stringer
M2 Open mono-stringer
P1 Clad structural steel
S1 Twin plate and folded metal
T1 Feature truss
V1 Vertical timber battens
W4 Winged steel blades
X1 Laser cut plate steel
Z1 Zigzag plate steel