Pankhani ya mankhwala opangira mankhwala, kugwiritsa ntchito PVC (polyvinyl chloride) kwafala chifukwa cha chuma chake komanso kusinthasintha. Komabe, DEHP, makina opangira pulasitiki omwe amagwiritsidwa ntchito mu PVC, adadzutsa nkhawa chifukwa cha thanzi komanso chilengedwe. WEGO, wosewera wodziwika bwino pazachipatala ...
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