Kufotokozera
Mzerewu umagwiritsidwa ntchito kwambiri popanga chitoliro cha polyvinyl chloride bidirectional stretch (PVC-O) madzi (CJ/T445-2014) kapena chitoliro cha waya wamagetsi, chogwiritsidwa ntchito ndi chitoliro cha UPVC chowonjezera chomwe chimakulitsa njira ya axial ndi radial, kupanga PVC molekyulu. unyolo umakonzedwa pafupipafupi, motero amapeza makina abwino kwambiri (mphamvu, kulimba, kukana kutopa, kukana kugwedezeka, etc.)
zofunika


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