2. Using European general hardware or China top-brand hardware;

3. Good performance in air tightness, water proof and safety, effectively insulating sound and heat;

4. Durable, stronger, (fireproof, antiseptic,bulletproof) function optional;

5. Available in any sizes as per your needs;

6. Elegant, econmical and popular use;

7. Different glass options are avaliable, such as tempered, tinted,low-e, laminated and etc;

8. Good convenience to install and clean.