Each die unit includes (a) a manifold segment (11A-11D) having an internal gear pump (15A-15D), (b) a die module (12A-12D) mounted on the manifold segment, and (c) a recirculating module (2A-2D) mounted on the manifold segment.

No element of the structure may be taller than 30 centimeters.

Platforms are flat landing areas used to break up the ramp and should be placed so that no ramp segment rises over 30 inches.

A fuel manifold segment (34) for gas turbine engines comprises a polymer tube(48) surrounded by a metallic braid layer (50).

The gear pump (15) of each manifold segment receives a polymer melt and delivers it either to the die module (12) (with its valve open) or to the recirculation module (2) (with the die module valve closed).