Waraaqaha dahaarka leh ee filimka PE, oo sidoo kale loo yaqaan xaashida dahaarka leh ee polyetylen, waa alaab warqad gaar ah oo aad u shaqeysa oo wax ka beddeshay warshadaha baakadaha. Warqadan dahaarka leh, oo lagu sameeyay iyadoo lagu sii saarayo filimka polyetylenka oo la saarayo mid ama labada dhinac ee warqadda, waxay isku daraysaa th ...
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