Shanghai "Yingfan" sumadda HDPE geomembrane (sidoo kale loo yaqaan: cufnaanta sare ee polyetylen geomembrane) waxay isticmaashaa tayada sare ee polyetylen bikrad bikrad ah, qaybta ugu muhiimsan waa 97.5% cufnaanta sare ee polyetylen, qiyaastii 2.5% kaarboon madow, wakiilada ka hortagga gabowga, antioxidants, Nuugayaasha UV, xasiliyayaal iyo galaangal kale
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