What issues should be considered when purchasing hot-dip plastic-coated steel pipes

To protect power and communication cables laid in systems such as railways, highways, subways, and municipal construction, cable protection pipes are generally added when cables cross obstacles such as railways, highways, and rivers. Currently, N-HAP hot-dip plastic-coated steel pipes are commonly used for cable protection on the market. Because they are frequently used for road cable protection, they are also known as hot-dip plastic-coated steel cable protection pipes. With excellent insulation properties, stable chemical properties, no rusting or aging, and a wide operating temperature range (-40℃-80℃), N-HAP hot-dip plastic-coated steel pipes can adapt to various harsh geographical environments. Hot-dip plastic-coated steel pipes and other products can be used as protective pipes for coated steel pipes in submarine tunnels and cross-sea bridges. When purchasing, the most important thing is to pay attention to the quality of the product. Here's how to check:

First, look at the surface of the hot-dip plastic-coated steel pipe. Generally, a smooth surface without cracks indicates that its quality is acceptable. You can also scratch the surface of the pipe with your hand or another object to see if the coating is too easily peeled off. If it doesn't peel off, the quality is okay. If the coating comes off easily with a light scratch, the product's quality is not good.