Uniform appearance and size
High-quality plastic-steel profiles have uniform dimensions, reasonable inner cavity structure and soft color. The protective film should be pasted flat and free of bubbles. The wall thickness of the extension is generally 2mm.
Anti-counterfeiting code is the key
The anti-counterfeiting code of genuine plastic-steel profiles consists of 20 Arabic numerals, which are distributed in points, clear, non-repetitive and difficult to erase. If the figures are found to be vague or easy to erase, and there are duplicates, it may be inferior products.
Protective film quality
The protective film of plastic steel profile should be smooth and bubble-free, and keep a straight line from beginning to end. The trademarks of fake profiles are often pasted by hand, with many bubbles, skew and poor quality.
Observe the properties of the contour.
After tearing off the protective film, observe whether the profile surface is smooth, without uneven spots, and whether the brightness and color are natural. Whether the wall thickness is greater than 2 mm and the toughness of the profile. Clamping the wall with a vise is easy to break, and the high-quality profile is not easy to break (not suitable in winter, because the plastic will become brittle at low temperature). In addition, strictly speaking, it is illegal to process plastic steel windows in the environment below 10 degrees.
Identification of authenticity by spraying code group
Each 6-meter-long profile should have 4-6 code-clearing spraying groups. The handwriting of the code-spraying group should be clear and complete. If it is ambiguous, it may be a counterfeit product. The spray code group of real profiles is unique, while the spray code group of fake profiles may be similar (due to equipment limitations). In order to ensure the authenticity, it is recommended to call the inquiry phone to inquire about the spray code.