The 55mm project is presented by Wonjin Aluminium.

The product obtains high efficient energy equipment certificates.

It is for luxury small-sized window and special window in houses, villas and apartments.

It is a reasonable and scientific window which combines the tilt (tilting the top from 10 to 15 degrees) and the turn (opening 90 degrees inside) for clear and effective ventilation, as well as insulation.

The product introduces the EPDM gasket with high tightness for perfect waterproof and insulation.