The frame adopts 14mm European standard slot,it is applicable to
any brand of European standard hardware,with long insulation.
Three seals in the outside,middle and inside,comprehensively
improving the overall performance
Angle aluminum bracket with guide groove,effectively enhance the
Using 5+12Ar+5+12Ar+5 double hollow toughened glass,the sound
insulation can reach level 8,giving you a quiet home.