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Which one of the following glasses is used in bulletproof screens? |
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(a) |
Soda glass |
(b) |
Pyrex glass |
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(c) |
Jena glass |
(d) |
Reinforced glass |
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Which one of the following glasses is used in bulletproof screens? |
|
|||
|
(a) |
Soda glass |
(b) |
Pyrex glass |
|
|
(c) |
Jena glass |
(d) |
Reinforced glass |
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