The Nation's Schools, Količina 89Michael Vincent O'Shea McGraw Hill, 1972 |
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Stran 94
... polycarbonates . Acrylics are up to 17 times stronger than ordinary glass , have good optical properties , are chemical - resistant , and will last up to 35 years . Poly- carbonates have the highest im- pact strength about 100 times ...
... polycarbonates . Acrylics are up to 17 times stronger than ordinary glass , have good optical properties , are chemical - resistant , and will last up to 35 years . Poly- carbonates have the highest im- pact strength about 100 times ...
Stran 16
... polycarbonates . First and foremost , you mention that poly- carbonates last approximately five to ten years . The truth of the Continued on page 19 For more facts circle 9 on reply card A Carrier chiller has the advantage in cooling a ...
... polycarbonates . First and foremost , you mention that poly- carbonates last approximately five to ten years . The truth of the Continued on page 19 For more facts circle 9 on reply card A Carrier chiller has the advantage in cooling a ...
Stran 19
... polycarbonate sheet to stop this marring and streaking and to provide excellent chemi- cal resistance . Finally , you refer to the good optical properties of acrylics . However , polycarbonates also have excellent optical properties ...
... polycarbonate sheet to stop this marring and streaking and to provide excellent chemi- cal resistance . Finally , you refer to the good optical properties of acrylics . However , polycarbonates also have excellent optical properties ...
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