Прищипване PPR тръбата има значителна твърдост и може лесно да бъде прищипана в деформирана тръба, която определено не е PPR тръба.
Touch Whether the texture is fine and the particles are uniform. At present, PPR tubes on the market mainly have several colors of white, gray and green. Generally, recycled plastics cannot be made into white, so consumers often think that white is the best. In fact, this view is rather one-sided. With the update and improvement of technology, color is not the standard for distinguishing the quality of PPR tubes. Whether the tube is good or bad, it seems that it can't solve the problem. If you touch it, the rough particles are likely to be mixed with other impurities.
Помиришете миризмата. Основният материал на PPR тръбата е полипропилен. Добрите тръби нямат миризма, а лошите имат странна миризма. Вероятно е да се смеси с полиетилен вместо с полипропилен.
Burn Той е много интуитивен и много полезен. PPR тръбите, смесени с рециклирана пластмаса и други примеси в суровините, ще отделят черен дим и ще имат остра миризма; добрите материали няма да отделят черен дим и миризма след изгаряне, а разтопената течност все още ще бъде много чиста след изгаряне.
A good PPR tube has good "resilience", and it is not a good PPR tube if it is too easy to smash. However, strong hardness does not mean good elasticity. Consumers will have doubts about PPR tubes that cannot be broken. Because some unscrupulous manufacturers increase the hardness of pipes by adding too much calcium carbonate and other impurities, such pipes are prone to brittle cracks after a long time.