A steel sheet pile retaining wall is a retaining structure composed of interlocking steel sheet piles. By driving or statically pressing the sheet piles into the ground, a continuous wall is formed to resist lateral pressure from soil or water.

"Schedule" (SCH for short) indicates the wall thickness grade of steel pipe, defined by ASME B36.10 (carbon steel) and ASME B36.19 (stainless steel) standards. The number "40" represents the wall thickness level for a specific pressure rating; the higher the number, the thicker the pipe wall and the stronger its pressure resistance.

ASTM A213 T12 belongs to the 1Cr-1/2Mo pearlescent low-alloy high-temperature steel category. A213 T12 steel has good machinability and weldability, and exhibits high thermal strength and oxidation resistance below 550℃.

ASTM A335 P5 alloy steel seamless pipe, also known as chromium-molybdenum steel P5 pipe or 5Cr-0.5Mo steel pipe, is a high-quality seamless ferritic alloy steel pipe.

High-pressure seamless pipe (also known as high-pressure boiler tube) is a type of seamless steel pipe specifically designed for high-temperature and high-pressure applications, and is an important branch of seamless steel pipes. It is widely used in thermal power generation, petrochemicals, and other industrial fields. Its core characteristics lie in its excellent pressure-bearing capacity and heat resistance.

Pipelines play a crucial role in the transportation of oil, natural gas, and water resources. API pipelines, with their high strength, reliability, and standardized performance, have become the core foundation of global energy transmission systems.

High-frequency welded pipe (HF or HFW pipe) is a type of steel pipe that uses high-frequency current to heat the edges of a steel strip to a welding temperature, then forms a weld seam through extrusion. It is widely used in petroleum, natural gas, building structures, automobile manufacturing, and machining.

Automobiles are one of the important application fields of seamless precision tubes. The key parts of a car, such as the engine, fuel system and braking system, do not require the use of high-precision and high-quality seamless tubes.

Steel sheet piles are a common building material used in foundation engineering and retaining structures. Their edges have special interlocking joints that allow adjacent piles to interlock, forming a tight continuous wall structure. They are widely used in port, dock, river regulation, underground structures, and foundation pit support projects.

Although both ERW steel pipe and spiral welded steel pipe are welded steel pipes, they differ significantly in performance, appearance, and uses due to differences in manufacturing processes, structural forms, and application fields.

Hot-rolled steel is one of the most important intermediate or terminal products in the steel production process. It mainly refers to heating the steel billet above the recrystallization temperature and rolling it into various shapes through a rolling mill.

Hot-rolled steel sheet piles are high-strength steel section products made through high-temperature rolling processes. Their cross-sectional shapes include U-shaped, Z-shaped and straight web types. They are mainly used in water conservancy projects, foundation pit support, bridge cofferdams and rail transit construction. They feature strong bending resistance, high construction efficiency and reusability.

The anti-corrosion protection of pipelines is a key link to ensure the long-term safe operation of the entire system. At the joints of pipelines, due to welding or connection operations, the original anti-corrosion coating may be damaged. Therefore, re-coating or re-coating must be carried out. This process is called field joint coating.

In HVAC and industrial cooling systems, the chilled water system is an important component for achieving efficient energy transmission. To ensure the stable operation of the system, choosing the appropriate pipe material is of vital importance.

DH36 and AH36 Marine steel plates are two extremely important high-strength ship plate materials. Both DH36 and AH36 belong to high-strength hull structural steel and comply with the standards of the Classification Society Association.