Labaran Samfura
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Nawa kuka sani game da bayanan kumfa na PVC
Lokacin da aka gabatar da bayanan kumfa na PVC a cikin 1970s, an lakafta su "itacen nan gaba," kuma sinadaran su shine polyvinyl chloride.Saboda tartsatsi amfani da m PVC low kumfa kayayyakin, zai iya maye gurbin kusan duk tushen itace.A cikin 'yan shekarun nan, t...Kara karantawa
