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Polystyrene cajalad cay ah
- Qalabka polystyren ee aadka u sareeya ee polystyrene
- Xalka baakadaha injineernimada ee xalka ku siinta xalka, indhoolayaasha, osstal oscillares, mlccs, iyo aalado kale oo aan caadi ahayn
- Dhamaan xajmiga xamuulka sinho ee ku habboon heerarka EA 481 ee hadda jira
