Usually, we use 5mm+6A+5mm double glass, you can take easy, Our double glass is made professionally, no steam or going foggy between the double glass.

Yes, all the doors & windows include frames. Installing the windows and doors on wall is OK.

The glass would be broken only because suffering from the impact force, but it won't break itself.

We have three styles of fly screen. One is roller style for casement window, one is sliding style for sliding window and door, and the last one is folding style for casement door. Besides, the fly screen is made of 3 different materials, namely nylon, steel and Kingkongnet.

It's hard to simply say one is better. Each one has its advantages. PVC is good at insulation and more economic. Aluminum is better in hardness and security.

There are three kinds of packing, such as bubble bag, bubble bag + wooden frame, bubble bag + wooden case. If full container, we advise to use bubble bag, it can save more space and hold more goods in the same container. Usually, the packing is bubble bag + wooden frame. The best packing is bubble bag + wooden case, some bulk cargo and some developed countries, such as USA, Australia and some countries in Europe, need wooden case packing, because their special requirement and wooden case can protect the goods very well.