Installation accessories
Step 1:
Fix the Sub head to the upper wall with screws
Step 2:
Fix the Sub sill to the bottom wall with screws
Step 3:
Fix the L-angle to the right and left wall with screws
Step 4:
Put the whole window into the Sub head,Sub sill and L-angle
Step 5:
Use screws to connect the s the L-angle and the window frame for fixing,then finish installation
