Ask for help: how to tell the true and false PPR water pipes in Pirsa?

Because Pirsa water pipes are well-known in the market, there are many kinds of "Pirsa" water pipes on the market at present, which are dizzying and confusing, but all of them have the words "Pirsa" in their names, so ordinary consumers simply can't tell who is real and who is fake. Let's see how to distinguish Piersa pipes! Turkey imported Pirsa water pipes, and the identification method of genuine Pirsa water pipes is as follows: 1. The protector and accessories are marked with the English trademark of genuine imported Pirsa, and the tube body is also marked with the English full name of the product, production date, specifications and other information; 2. The color of the caretaker is true. The tube color of imported Pirza products is soft white or milky white, and the color is matt, while the tube color of counterfeit products is dark or bright, and the color is bright; 3. The genuine imported PISSAPP-R pipe has a strong feel when hot-melt socket, and there is no wire drawing phenomenon in the hot-melt process; 4. The landing sound of genuine imported Pilsa PP-R pipes is dull, while the landing sound of fake PP-R pipes is crisp. When purchasing, it is best to ask the merchant to show the certificate of Pirsa to prove that it is a qualified product.