There are many brands of water pipes and wires with uneven quality. It is suggested that we generally use two brands: Yudie Wire and Li Biao Water Pipe.

"Yudie" wire is a local brand in Guiyang, which has a good market share and customer recognition.

Here are some simple identification methods:

Look at the color first. According to reports, the copper core is yellow with red, the copper used for annotation is of good quality, and the yellowing in yellow is a problem of low-quality copper. Work. For aluminum core wires, the regular ones must shine, flashing silvery white light under the light, and the dark ones look black with poor quality.

Secondly, it depends on whether the length and thickness of the core have any physical movements. According to relevant standards, the error of wire length is less than 5% and the diameter of section line is less than 0.02%. However, there are phenomena of short length and fake cross-section in the market (for example, a line with a cross-section of 6 square millimeters is only 4.5 square millimeters thick).

The third is to push a section of insulation layer in the length direction. Core line in the middle, then qualified. If it is not centered, it will be eccentric because of low technology. If the force is small, it will calm things down. Once the electricity is removed, the thinner side is likely to be broken down by current.

Standard water pipe:

Established in 2006, Debiao Pipe Industry (Shanghai) Co., Ltd. is a Sino-German joint venture specializing in the production of high-tech plastic pipe systems, which uses Nordic chemical raw materials. We have been using 4.2-wall PP-R nano-antibacterial Debiao pipes, which have the function of water purification and sterilization, and the feedback from the owners is good.

The owner can preliminarily identify the authenticity of PP-R pipes and fittings from the appearance and feel, and refer to the following identification methods:

First look at the packaging. The manufacturer, address, telephone number and other information must be marked on the package, while the fake goods are vague or even absent.

Second, look at the identification of words sprayed on the pipeline. The logo on the genuine product is more specific, such as factory name, trademark, specification, model, production time, etc. And the fake product may be incomplete and the spray words are vague, while the spray words on the genuine PP-R tube are clearer.

Third, the real goods on the pipe fittings are clearly marked, with specifications and trademarks; And fakes have no trademarks or even specifications.

Fourthly, the inner wall of true PP-R tube is smooth and has no peculiar smell; The fake has a rough inner wall and a bad smell.

Fifth, the true PP-R tube is pure in color, with no mottled and matt colors; The fake PP-R tube has bright luster, especially bright or dim color.

Sixth, the real PP-R pipe feels soft; The fake PP-R tube feels smooth or rough.

Seventh, when the real PP-R pipeline is installed, it should be smokeless and tasteless at normal welding temperature; The fake PP-R tube smokes and has a pungent burning smell. It should be pointed out that the service life of pseudo-PP-R tube is only 15 years, while the service life of real PP-R tube is more than 50 years.

I hope my answer can help you, thank you!