Double glazed PVC window white plastic window uPVC casement windows
Clean sight and smooth operation make TONGDA casement windows a simple choice for light and air circulation. Compared with many casement windows on the market, these casement windows are difficult to find or integrate multiple locking points correctly, while TONGDA’s aluminum casement windows use a hidden multi-point locking system, which can be The bottom of the window is easily locked with one lever operation. We can provide a variety of styles, designs, and performances for you to choose from. For more aluminum casement window details, Please contact us.
About accessories：
TONGDA uPVC casement windows use high-quality Chinese accessories, and the hinges and handles are strong and durable. It not only greatly improves the service life of the door but also makes every time the door is opened and closed more smoothly.
WHY CHOOSE US?
1. With More than 10-year experience, we offer professional designs, free samples, high quality
products and considerate after-sales service.
2. We’ve introduced high-quality and safe materials and advanced technologies. Competitive
prices available for large orders.
3. Our products are widely used and rather popular among domestic and especially overseas
markets: continents like South Africa, South America, the Middle East, and Africa; countries
including Kenya, Nigeria, UAE, Oman, Saudi Arabia, Australia, India, Canada, USA,
Singapore, France, England, Malaysia, Philippines, Colombia, Brazil, etc.
4. We can make many specifications according to clients’ requests!
Production Process
Aluminum project case
Aluminum window and door order Flow
FAQ
Q1: All these doors and windows come with frames to mount on walls?
A: Yes, all the doors & windows include frames. Installing the windows and doors on the wall is OK.
Q2: The glass is broken for no reason, I’m afraid the rest will be broken.
A: The glass would be broken only because of suffering from the impact force, but it won’t break itself.
Q3: Can you use rubber instead of glass silicon?
A: Yes, but it just can be one side, the other side has to be glass silicon. Because it is not
strong enough to use double rubber. And it is easier to fall off than glass silicon.
Q4: What is the difference between the 90-degree and 45-degree connecting?
A: There are 90-degree and 45-degree corners connecting. The 90-degree window is connected by
a screw, and we assemble the 45-degree window by a corner brace. The 45-degree corner
connecting window is a new style, which is easy to overhaul.
Q5: Do you know what is U-value?
A: Yes, it simply means that every degree of the temperature difference between a hotter air
space and colder air space, the heat energy will transfer per sq.m to the colder air space.
For example, let’s say your house has a ceiling area of 100sqm, the difference in temp is
30deg and the amount of watts you pay for consumption is 6000w. Then the U-value is
6000w/100m * 30k=2w/(m *k).
If you need more information, please contact our sales
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