1. When road construction, construction projects, or various vehicles are walking, they are attached to the scattered earth, sand, dust, iron powder, etc.2. When it is polluted by harmful substances such as sulfurous acid gas contained in the exhaust gas of cars, buses, etc.3. It is polluted by dust

Hot-dip plastic steel pipe and plastic-coated steel pipe are not hot-dip plastic cable protection steel pipe with excellent corrosion resistance and relatively small friction resistance. The epoxy resin-coated steel pipe is suitable for water supply and drainage, seawater, warm water, oil, gas, and

1 Using strip steel of the same width can produce steel pipes of different diameters, especially narrow strip steel can be used to produce large diameter steel pipes.2 Under the same pressure conditions, the stress endured by spiral welds is smaller than that of straight seams, which is 75% to 90% o

Hollow profiles, also known as tubular profiles, offer several industrial advantages due to their unique structure and properties. Here are some of the key advantages:1. Lightweight: Hollow profiles are generally lighter than solid counterparts, which makes them easier to handle, transport, and inst