First, look at the appearance of the plastic tube. If the appearance of the product is rough, there are molding defects, the color is not correct, there are impurities, and the printing quality is poor. It is better not to use it. The appearance of substandard products will affect the consumer's visual experience, while the appearance is a reflection of the intrinsic quality, appearance of substandard products are often of poor internal quality, affecting the use. The unsatisfactory quality of the print will affect the appearance, while the color will fade and pollute other items.
Next, by the smell of plastic pipe, plastic products have difference smells because of the use of recycled materials and poor quality additives. The irritating odor emitted by an odoriferous product can harm the body's respiratory system. It is best not to use it.
Try the quality of the plastic tube by hand. Some products are very colorful in order to attract the eye of the consumer. Dark pigments of poor quality can be extracted during use. These pigments are generally industrial pigments. Consumers can check by hand whether the selected dark color products are qualified: Pour a small amount of vinegar on the absorbent cotton balls, and then wipe them back and forth 100 times. If the cotton balls are dyed with color, the product is unqualified.
Consider the suitability of plastic pipe. We must consider the actual choice of pipe. As the construction water supply is a pressure pipe, once leakage and bursting occur, it will cause great loss to people's production and life. Therefore, safety and reliability is a principle that we must consider.
When selecting materials, we must look at the vibration shock, water hammer and thermal expansion and contraction capacity that various plastic pipes can withstand to see if they meet the requirements of the project. Consider economic factors.
The above is a description of how to buy plastic pipes. I hope that everyone can understand the prices and choose suitable PVC plastic pipes.