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Degassing pipe

Gas drainage pipes are specialized pipelines used in coal mines to extract gas from coal seams, rock formations, and mined-out areas. They convey combustible gas to the surface or to safe zones by creating a vacuum, thereby preventing gas accumulation and explosions. Their primary function is to ensure mine safety; at the same time, the extracted gas can be utilized as a resource—for example, for electricity generation or for domestic gas supply.

Steel flower tube

Steel flower tube

A steel grouting pipe is a cementing pipe with regularly spaced small holes drilled through the wall of standard steel pipes. Ground or rock reinforcement is achieved by injecting grout under pressure. It is widely used in tunnel construction, slope stabilization, and other projects. Standard diameters range from 42 to 108 mm, with typical lengths of 6 or 12 meters; custom configurations are also available.

Special pipe for pile foundation testing

Special pipe for pile foundation testing

Pile structures made of steel pipes are construction piles consisting of steel pipes with sharp pointed tips. They are bent into arc-shaped configurations and used in projects such as waterbody and soil retaining structures. These piles feature a simple design, excellent watertightness, and high strength. Their outer diameter typically ranges from 50 to 120 cm, with wall thicknesses from 1 to 18 cm, and they are most commonly fabricated from low-alloy steels of grades Q235 or 16Mn. Steel tubular piles are widely employed in the construction of bridges, piers, subway systems, and other infrastructure, particularly in areas with soft soils, to ensure effective load distribution and prevent settlement.

Heat-treated steel pipe, 89 mm, hardened steel sleeve for heavy machinery

Heat-treated steel pipe, 89 mm, hardened steel sleeve for heavy machinery

The pipe presented is a high-strength geotechnical pipe primarily used in pile foundation construction, tunnel support, slope stabilization, and other applications. Its main material is R780 alloy steel, which boasts exceptional tensile strength of 880–902 MPa and a yield strength of 631–658 MPa, enabling it to withstand substantial loads under challenging geological conditions.

48 mm anti-corrosion pipe for cementation in railway track reinforcement

48 mm anti-corrosion pipe for cementation in railway track reinforcement

The branch-injection technique is a method used in tunnel construction to provide preliminary support for weak and fractured surrounding rock masses. It reinforces the surrounding rock through grouting to prevent collapse.

219 Casing pipe

219 Casing pipe

A geological casing pipe is a specialized pipe used in geological drilling and tunnel support. Its primary functions are to protect borehole walls, provide isolation and guide the drill bit, prevent borehole wall collapse, isolate different strata, and serve as a conduit for drilling operations. The materials used in its manufacture include steel grades such as DZ40, DZ50, DZ60, and the R780 series, and it complies with national standards like GB/T 14975-2012. Depending on the application, it can be classified into drill pipes, drill collars, casing pipes, and other categories; it is suitable for oil well drilling, tunnel support, and other uses. Geological casing pipes are available in a variety of sizes and price ranges, including API 5CT N80 L80 thick-walled casing for oil wells, K55/J55 seamless oil casing, and more.

Alloy pipe

Alloy steel is a versatile material that is well suited for heavy industry. It is an exceptionally hard material that withstands high temperatures and is highly resistant to wear, and it is available in a range of grades, each tailored for specific applications.

Alloy pipe

Alloy steel is a versatile material that is well suited for heavy industry. It is an exceptionally hard material that withstands high temperatures and is highly resistant to wear, and it is available in a range of grades, each tailored for specific applications.

Alloy pipe

Alloy steel is a versatile material that is well suited for heavy industry. It is an exceptionally hard material that withstands high temperatures and is highly resistant to wear, and it is available in a range of grades, each tailored for specific applications.

Alloy pipe

Alloy steel is a versatile material that is well suited for heavy industry. It is an exceptionally hard material that withstands high temperatures and is highly resistant to wear, and it is available in a range of grades, each tailored for specific applications.

76 Wear-resistant injection pipe for underground structures

76 Wear-resistant injection pipe for underground structures

The branch-injection technique is a method used in tunnel construction to provide preliminary support for weak and fractured surrounding rock masses. It reinforces the surrounding rock through grouting to prevent collapses.

Delivery of high-strength expanding tubes for reinforcing structural elements

Delivery of high-strength expanding tubes for reinforcing structural elements

The branch-injection technique is a method used in tunnel construction to provide preliminary support for weak and fractured surrounding rock masses. It reinforces the surrounding rock through grouting, thereby preventing collapses.

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JIECHUANG METAL

Shandong Jiechuang Metal Products Co., Ltd. is a technology-driven enterprise specializing in the production and sales of metal products.

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Exploratory casing pipe

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