Ucingo lwe-PVC lwenziwa ngumatshini wokuphinda kabini we-screw extrusion. I-PVC extrusion yinkqubo yokuvelisa ngesantya esiphezulu apho iplastiki ekrwada inyibilika kwaye yenziwe iprofayile ende eqhubekayo. I-Extrusion ivelisa iimveliso ezinjengeeprofayili zeplastiki, imibhobho yeplastiki, i-PVC ye-railings yedekhi, i-PV...
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