why plastic are strong and durable?
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plastic is a polymere consist of molecule bonded stongly and they are cross-linked in 3d to make it extra strong .
its not get rust , waterproof , not easily get dirt and easily replaceable and non-distructable . it not biodegreadable . and cost low so its durable.
_______________________________
plastic is a polymere consist of molecule bonded stongly and they are cross-linked in 3d to make it extra strong .
its not get rust , waterproof , not easily get dirt and easily replaceable and non-distructable . it not biodegreadable . and cost low so its durable.
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