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Greetings, long ago did this, but no one answered satisfactorily, I proposed a project and want to return, if anyone has any idea or formula as done, would appreciate the help, to have an idea that is is a system for glass / CARPINTERIA, here leave a review of the topic:
http://imageshack.us/photo/my-images/207/grash.jpg/
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![Image](http://img716.imageshack.us/img716/6183/cortesr.jpg)
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![Image](http://img716.imageshack.us/img716/6183/cortesr.th.jpg)
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Se escuchan ideas, gracias, saludos...
![Shocked :shock:](./images/smilies/icon_eek.gif)