Routine maintenance is required when thick-walled steel pipes are used: thick-walled steel pipes are widely used steel varieties. It directly affects the economic benefit and personnel's life. All countries in the world attach great importance to the inspection of thick-walled steel pipes and adopt

The coating anticorrosion of anti-corrosion steel pipe is a uniform and dense coating formed on the surface of de-rusted metal pipes, and its coating can isolate it from various corrosive media. Steel pipe anti-corrosion coatings are increasingly using composite materials or composite structures. Th

According to the current installation process of fire-fighting buried steel pipelines, it is generally required that the thickness of epoxy coal tar pitch is greater than 0.3mm for ordinary grades, the thickness of reinforced grades is greater than 0.6mm, and the thickness of specially reinforced gr

Steel pipe products are widely used in water supply engineering, the petrochemical industry, the chemical industry, the electric power industry, agricultural irrigation, and urban construction. They are 20 key products developed by our country. Used for liquid transportation: water supply and draina