I don't think that 60C will have much of an effect. Actually, I don't think that 100C will have that much of an effect. Epoxy is quite rugged. Note that not all would be suitable, though. Nor would all survive steam heat. Anyway, a production problem easily sorted out. Some of the epoxy will stand up to 200C (~420F) easily. circuit boards for instance, used to be floated over liquid solder.
Generally the layers are taped together, along with thermoset epoxy. Then the whole thing is baked for a time. Untaped and de-cored for further processing. The tape usually shrinks a bit applying a tight compression, squeezing excess resin out. This is used for fishing rods where a taper is desired. Fairly easy as it sits. Short lengths are much easier than long lengths. A largish machine can make the whole thing go much faster...continuous. Used for arrow shafts and other mostly "extruded" type pieces. The fabric is usually wrapped, usually hi-linear layers and "square" type tapes and cloths. Varying the layers can achieve your desired result...lots more to this, but in general. High pressure is used to force the resin in and to force the fibers into close proximity to each other.
There is no real constraint to making individual curved pieces for poles. Indeed, one of the problems is getting them straight. I believe that with the low temp plastics (a lot of different types besides the one you mention) the problem would be lack of internal compression strength. The plastic would soften slighly and not be stong enough to support the internal fibers very well in the setting phase. So, you end up waiting...up to a week for many epoxies at room temp. (Though it seems hard after 4-6 hours, the chemical process will continue up to a week till maximum hardness and strength is reached.) The longish lead time will cause some problems in manufacture, supply, storage, etc. Really not conducive to mass manufacture, cheaply.
This is just one manufacture problem, not insurmountable...but costly.
Lost wax is a process using some material (it doesn't have to be wax) that when heated, runs out of the object. It actually started hundreds of years ago, for metal casting (bells?) hence the name.