the product quality

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<p>Check the appearance of the product quality of the aluminum composite pipe, the general wall smooth, the wall on the trademark, specifications, for temperature, meters and other signs clear, manufacturers in the wall also print the production number, ready to monitor product quality; product packaging Sophisticated, packaging on the various signs of the same clear, the manufacturer name, address, telephone, etc. are printed in the prominent position. The shoddy products generally rough outer wall, logo is unclear or incomplete, simple packaging, site or phone unknown. </p><p>aluminum layer can not be ignored good aluminum-plastic composite pipe, in the aluminum layer at the junction of welding, aluminum and plastic layer with a close, no stratification. The fake and shoddy products are not welded at the aluminum layer, and some aluminum and plastic layer is often layered, not close. PP-R pipe As a new type of pipe material, PP-R pipe has a unique advantage, its non-toxic, light weight, pressure, corrosion resistance, the use of special hot-melt way to connect, will not corrode rust, and PP-R tube is not Will fouling, is becoming a popular material.</p><p> As the production process is relatively simple, there are a large number of counterfeit products on the market, in order to help owners from the shape and feel on the initial identification of genuine PP-R pipe and pipe, can refer to the following identification methods: Product Name: True PP-R product name should be "hot and cold water with polypropylene pipe or" hot and cold water with PP-R tube ", where the ultra-fine particles modified polypropylene tube (PP-R) or PP-R cold water pipes, PP-R hot water pipes, PP-E pipe and other non-formal names are pseudo PP-R tube. The density of pseudo-PP-R is slightly larger than that of true PP-R.</p>