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bullet proof glass is made up of which material?
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Answer Posted / sandeep
Bulletproof glass is usually constructed using a strong but
transparent material such as polycarbonate thermoplastic or
by using layers of laminated glass. The desired result is a
material with an appearance and light-transmitting behavior
of standard glass but offers varying degrees of protection
from small arms fire.
The polycarbonate layer, usually consisting of products
such as Cyrolon, Lexan and Tuffak, is often sandwiched
between layers of regular glass. The use of plastic in the
laminate provides impact-resistance, such as physical
assault with a hammer, an axe, etc. The plastic provides
little in the way of bullet-resistance. The glass, which is
much harder than plastic, flattens the bullet and thereby
prevents penetration. This type of bullet-resistant glass
is usually 70-75 mm thick
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Hai, iam renjith. my qtn about the calorex heat and cool pump. What is the reason of the above machine is trip on high pressure. r134a gas using in this system. 8 months old. model is calorex propac 90(3 phase). This system has 2 compressor. Both are starting on 13amps after that rise up to around 21 within 1 minute. After will be trip on high pressure. Showing 68 psi in suction side on standby mode. Can i have a solution without delay? Renjith renjithngm@gmail.com
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