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28/11/2025

FEATURE| Corrugated Steel Culvert: The Solution for Cost Reduction and Efficiency Improvement in Infrastructure Engineering

Using corrugated steel culverts instead of traditional concrete culverts for culvert construction offers unparalleled advantages in terms of construction time, cost, and environmental benefits. These trends collectively point to a safer, smarter, and more sustainable infrastructure future.

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02/12/2024

FEATURE| Main Shipping Routes for International Logistics Transportation

The routes of maritime transport are distributed between the oceans, which is also the advantage of maritime transport over other modes of transport. When choosing a route, the conditions of the cargo, ships, and ports must be considered, and a comprehensive assessment of the system organization must be made before a reasonable choice can be made.

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30/09/2024

FEATURE|The Analysis of the Development Status of Steel Market in Shandong Province(China)

Affected by the terminal market, domestic steel demand will continue to be sluggish, which will lead to inventory backlogs. Therefore, merchants generally begin to seek overseas orders. Domestic steel prices are in the global price trough, and the RMB exchange rate is still hovering at a low level, making China's steel exports more cost-effective.

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28/08/2024

FEATURE|The Analysis of the Impact of China's New Rebar Standard-GB 1499.2-2024

On June 25, 2024, China announced the new national standard for rebar -GB 1499.2-2024 (after this referred to as the new national standard) and announced that the policy would be officially implemented on September 25, with a buffer period of 3 months.

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29/07/2024

FEATURE| The Knowledge Summary of Seamless, Welded Steel Pipes, Stainless Steel Pipes, and Special-shaped Steel Pipes

A steel pipe is a steel material with a hollow section whose length is much greater than its diameter or circumference. Steel pipes have the advantages of high strength and durability, and those pipes are easy to cut, weld, and form.

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28/06/2024

FEATURE| Analysis of the Difference Between Galvanized Steel Sheet and Galvalume Steel Sheet & Plate

Galvanized steel sheet & plate and galvalume steel sheet & plate are two common anti-corrosion steel plates widely used in construction, automobiles, home appliances, and other fields. The two products have similarities and differences.

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04/06/2024

FEATURE|A New Fashion in the Field of House Construction, Colored Stone Metal Tile

Stone-coated metal roofing tile not only has the natural, deep, and excellent decorative properties of traditional clay tile but also has the light, strong, and durable performance of modern metal tile. It is the main trend in the development of international advanced roofing materials.

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Short News

22/07 17:25

< On July 22, the price of galvalume steel sheet & coil in Guangzhou remained stable. DX51D+AZ120 (ASTM A792/A792M CS) Pangang 1.0*1250*C 704.53. (USD/ton)

22/07 17:17

< On July 22, the price of seamless steel pipes in Liaocheng remained stable. 20# (ASTM 1020) Haoyu Φ48*3 (cold drawn) 700.10. (USD/ton)

22/07 17:16

< On July 22, the price of hot rolled pickled coil in Rizhao remained stable. SPHC (A1011 CS Type B) Rigang 4.0*1250*C 521.38. (USD/ton)

22/07 17:15

< On July 22, the price of cold rolled ribbed steel rebar in Jinan did not drop significantly. CRB600H (ASTM A615 Grade 80) Gaosu Φ12mm 576.03, down 2.95. (USD/ton)
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22/07 17:14

< On July 22, the price of hot rolled steel plate in Hangzhou fell slightly. Q235B (ASTM A36) Ninggang 2.75*1500*6000mm 528.77, down 8.86. (USD/ton)
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22/07 17:10

< On July 22, the price of wear-resistant steel plates in Tangshan remained stable. NM500 (AR500) Puyang 30 (hot rolled) 679.42. (USD/ton)

Answers

How to inspect and accept NM400 when purchasing it?
It is recommended to conduct acceptance from the following aspects:
Verify the quality certificate: Carefully check the quality certificate provided by the steel mill to confirm whether the grade, specifications, chemical composition, mechanical properties, etc., meet the contract requirements.
Surface quality inspection: The surface of the steel plate shall not have defects such as cracks, bubbles, scabs, folds, and inclusions, and shall not have delamination.
Measure the external dimensions and hardness: Check the flatness and hardness of the steel plate by random sampling. This ensures that the wear-resistant steel plates you purchase meet the requirements. If you are still concerned, you can arrange for a third party to conduct an inspection, which guarantees the quality of the steel from the source.
Our platform has third-party inspection services, providing you with comprehensive support from resource matching, quality inspection, to logistics transportation. Please contact us at any time if you have any needs.
What is the difference between anti-corrosion coatings and rust-preventive oils for steel?
Rust-preventive oil: This is a temporary protection method. It works by applying an oil film to isolate the steel from air and moisture, primarily preventing rust during transportation and short-term storage. It needs to be cleaned upon arrival and does not alter the steel itself.
Anti-corrosion coating (paint/coating): This provides permanent or long-term protection. It forms a strong coating (such as epoxy zinc-rich paint or polyurethane topcoat) through sandblasting, brushing, or spraying, providing weather resistance, salt spray resistance, etc., and is the primary means of corrosion protection for engineering structures.
The two have different uses and cannot be substituted for each other.
What are the common specifications for stainless steel sheets in China?
Stainless Steel Sheets and Materials: 304, 316L, 321, 201, (301 coiled tubing); Domestic Stainless Steel Sheets: 430, 409, 201

Stainless steel sheet thickness：304 stainless steel sheet thickness: 0.12 mm–65 mm; 316L stainless steel sheet thickness: 0.5 mm–16 mm

Sheet surface finishes: 8K mirror finish, 2B polished finish, sandblasted (brushed, sandblasted), titanium finish, rice-grain finish, oil-finished brushed, Ba-finished

Sheet widths: 1000 mm × 2000 mm, 1219 mm × 2438 mm, 1219 × 3048, 1219 × 3500, 1219 × 4000, 1500 mm × 3000 mm, 1500 mm × 6000 mm


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