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GB/T 3222-94 Acoustic Environmental Noise Measurement Method
，内容是GB/T 3222-94声学 环境噪声测量方法
In 1994, GB/T 3222 was released by the China National Standards on Acoustics to provide a standard method to measure sound levels in the environment. The standard was developed to meet the needs of new acoustic construction regulations in China and to reduc......
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Structural steel for hull GB 712-88
Structural Steel is a metal alloy that is used for a variety of purposes, including for the building and construction of ships, bridges, buildings, and other structures. It is strong, durable, and resistant to a variety of weather conditions, including corrosion. Structural Steel is an alloy of Ir......
Q235A use
Q235A is a type of steel material that is often used for various different purposes. It is an alloy of iron, carbon and other elements, and is frequently used in constructing various structures and components for a variety of uses.
Q235A is commonly used in constructions, such as bridges, oil sto......
USt37-2 use
St37-2 steel (1.0037 material) is an unalloyed structural steel grade complies with DIN 17100: 1980 and has been discarded since 2004. According to German standard DIN 17100, St37 steel is divided into St37-2, USt37-2, RSt37-2 and St37-3.
The concentration of alloy elements such as Molybdenum, ch......
Russian Reinforced Steel No.
Introduction to Russian Reinforced Steel
Russian reinforced steel is one of the most commonly used types of steel in both industrial and construction industries. This type of steel is made from a combination of both iron and carbon, making it resistant to corrosion, great for welding, and easy to......
Comparison table of world steel grades (pdf format)
Steel Numbering System
Steel is a vital material used in many industries. Steel is essential for construction, automotive and more. In order for vendors, engineers and builders to identify the type of steel being used, a steel numbering system was created. This numbering system helps to classify ......
General regulations of Baosteel wire rod packaging, marking and quality certificate
The Use of Aluminum Billets in Construction
Introduction
Aluminum billets are an essential component of many construction projects, both as structural elements and for decorative purposes. Aluminum is an attractive, lightweight, and corrosion-resistant metal, making it an ideal material for use ......
High weather resistance structural steel (GB/T4171-1984)
，写Highly Weather Resistant Structural Steel (GB/T 4171-1984)
Highly weather resistant structural steel (GB/T 4171-1984) is widely used in a variety of industries, ranging from construction, shipbuilding and engineering projects to civil infrastructure and manufacturing. This steel is low carbon, ......
Angang Carbon Structural Steel Plate (ASTM)
ASTVa Carbon Steel Structural Steel Plate
ASTM A36 is a carbon structural steel plate for general structural purposes. This material is a type of steel, which is available in different grades or alloys. The carbon content of the steel determines the strength, hardness and flexibility of the steel......
plate
Plywood has been used in construction for hundreds of years and is still one of the most commonly used building materials around today. It is made of thin layers, or “plies”, of wood veneer which are glued together with their grain oriented perpendicular to one another in alternating layers. The......
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