Baaxadda isticmaalka bacaha polypropylene waa mid aad u kala duwan. Sidaa darteed, bacda noocaan ah, waxaa jira dhowr nooc oo leh sifooyinkooda gaarka ah. Si kastaba ha ahaatee, shuruudaha ugu muhiimsan ee kala duwanaanshuhu waa awoodda (awoodda qaadida), alaabta ceeriin ee wax soo saarka, iyo ujeedada. Lasoco...
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