1. polystyrene | |
A polymer of styrene; a rigid transparent thermoplastic
"expanded polystyrene looks like a rigid white foam and is used as packing or insulation";
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ايک بے رنگ شفاف پلاسٹک ۔ يہ پيکنگ ميں استعمال ہوتا ہے۔ |
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