In the field of corrosion protection for pipelines, storage tanks, and various steel structures, three-layer polyethylene (3PE) and three-layer polypropylene (3PP) coatings are two of the most common and efficient corrosion protection technologies. The choice of which directly affects the project's

I. What is Third-Party Production Supervision?Third-party production supervision refers to the service provided by a professional third-party inspection agency, independent of the purchasing party and the factory, to supervise, inspect, and evaluate the factory's production activities at different s

Mainstream Steel Pipe Coating Systems and Their Core International StandardsDepending on the application environment (e.g., buried, subsea, atmospheric), steel pipe coating systems vary widely. Below are several mainstream systems and their corresponding key international standards.1. Fusion-Bonded

I. Why are standards so important?Pipe fitting standards standardize dimensions, pressure ratings, materials, tolerances, testing methods, and marking methods. This brings:Interchangeability: Pipe fittings of the same standard from different manufacturers can be used interchangeably, simplifying pro

I. Core Foundation: Carbon – The Soul of Strength and the Root of BrittlenessCarbon is the most fundamental and important alloying element in steel, its role being both crucial and detrimental.Subtle Mechanism of Action: Carbon atoms embed themselves in the iron atom lattice, forming a solid solutio