Isibhamu sokushisela esiwucingo sepulasitiki, esaziwa nangokuthi isibhamu sokushisela i-extrusion, iyithuluzi elikhethekile elisetshenziselwa ukushisela ipulasitiki, ikakhulukazi ukushisela i-extrusion. I-Extrusion welding iyinqubo lapho induku yokushisela yepulasitiki noma ucingo luncibilika futhi lukhishelwe endaweni ukuze luhlanganiswe, okudala isibopho esiqinile nesihlala isikhathi eside.
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