VARIOUS METHODS ARE APPLIED TO MAKE SCHOOL WINDOWS SAFE. THE CHEAPEST AND MOST RELIABLE OF THESE METHODS IS V OPENING. IN THIS TERMS, OKIL HAS MADE IT VERY EASY TO CONVERT NORMAL WINDOWS INTO V-OPENING WITH THE HINGES AND TANSANS THAT IT HAS DESIGNED. V OPENING IS THE MOST SUITABLE OPENING FORM FOR OCCUPATIONAL SAFETY IN OUR SCHOOLS. CLASSROOM VENTILATION IS DONE WITHOUT PROBLEM. V DUE TO AN OPENING, IT IS NOT POSSIBLE TO END IT OUTSIDE. WINDOW OPENING IS DETERMINED BY THE POSITION OF THE TANSANS. THE WINDOW CAN BE OPENED AT THE DESIRED RATIO. THE INSTALLATION IS SUCH AS EVERY SCHOOL CAN DO IT. IT IS SHIPPED AS A V OPENING SET. THIS SET CONTAINS 2 TRANSLATIONS, 2 HINGES, 1 CRASH LOCK AND MOUNTING SCREWS.