ESO ndi pulasitiki wothandizira, wopangidwa bwino kuchokera ku zinthu zachilengedwe zabwino kwambiri ndipo wapambana mayeso a poizoni a Disease Control Center, Shanghai Food and Drug Administration ndi SGS.
Mapulogalamu
Zinthu zonse za PVC, monga mafilimu a PVC, zikopa, zingwe ndi mawaya, zoseweretsa, machubu, ndi zina zotero. ESO ingagwiritsidwenso ntchito mu PCB m'malo mwa mafuta a tung.
