Decoration knowledge how to identify the authentic

2022-07-22
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In the building materials market, some businesses use "composite tubes" to pretend to be aluminum-plastic composite tubes to deceive consumers. Should we identify the authenticity of aluminum-plastic tubes

in the building materials market, some businesses use “ Combination tube ” Pretend to be aluminum-plastic composite pipe and deceive consumers. Should we identify the authenticity of aluminum-plastic pipe

brand stores: water pipes

first identify the pipes. The real aluminum-plastic pipe is a 5-layer wrapping structure. There is a layer of hot melt adhesive between polyethylene and aluminum pipe, and the two layers cannot be peeled off& ldquo; Combination tube ” It is a three-layer structure. There is no hot melt adhesive between aluminum and polyethylene, which is easy to peel off by hand

link: Qijia expert teaching: selection and classification of water pipe materials

in addition, from the perspective of processing technology, the real aluminum-plastic pipe is finely processed, and the words outside the pipe are inkjet printed. The handwriting is similar to that at the bottom of the cans. If you burn it, there will be no aluminum flakes falling off; Fake “ Combination tube ”, The price is often very cheap, because it uses ordinary non high-density polyethylene material. The words outside the tube are printed by ordinary printer, and the handwriting is fuzzy. Once it is burned, there will be aluminum flakes falling off

finally, we should pay attention to whether the test report provided by the salesperson is true. An important test item of pipes is pressure resistance. This item cannot be missed. The report must indicate “ This test is only responsible for the incoming samples ”, If these words are missing, it is certain that this is a fake report. If the report is fake, the product will certainly not be true

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