| http://www.w3.org/ns/prov#value | - 8 MEASURES TO BE TAKEN IN ASSEMBLING PLASTIC PARTS Plastic is a poor conductor of heat and has a different thermal expansion coefficient from that of the metal inserts so measures must be taken, while remachining the hole, to stop the hubs and bushings from overheating: in fact, the heat produced is not dissipated and the metal parts expand and create stress inside the body of the plastic which ha
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