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Stainless steel hot-rolled equilateral angle steel (abstract) GB 4227-84
GB 4227-84 Hot Rolled Stainless Steel Edge and Corner profile Steel
GB 4227-84 is a national standard for hot rolled stainless steel edge and corner profile steel. It was introduced by the State Bureau of Standard on October 31, 1984 to improve product quality and ensure the reliability of produc......
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Cold-formed steel for rolling shutter doors and steel windows (YB/T516-1993)
Cold Formed Steel for Rolling Shutters and Windows
Cold formed steel is a type of steel that is formed by bending and stretching it through roll forming. It is a process of shaping metals into predetermined shapes or profiles and is used in many industries. It is the most commonly used material fo......
Hot-rolled U-shaped steel for mine roadway support (GB/T4697-1991)
Hot Rolling U-shape Steel for Mine Tunnel Support
U-shaped steel is an important material used in mine tunnel support. It provides structural support and stability so that the tunnel is secure, and miners can safely access the staircase leading to the mine safely. Hot rolling U-shape steel for mi......
Aluminum and aluminum alloy hot extrusion profiles GBn 222-84
GB/T 222-1984
Aluminum and Aluminum Alloy Extruded profiles
1 Scope
This standard specifies the technical requirements and test methods for aluminum and aluminum alloy extruded profiles which are produced from aluminum and aluminum alloy billets by cold or hot extrusion.
2 Normative References......
GB/T 4697-1991 Hot-rolled U-shaped steel for mine roadway support
GB/T 4697-1991 Hot-rolled U-profiles for Mine Roadway Support
This Chinese technical standard specifies the requirements, appearance examination, tensile properties, bendability and hardness tests of hot-rolled U-profiles for mine roadway support. The technical standard applies to hot-rolled prof......
GB/T 3414-1994 Hot-rolled special-shaped steel for coal machinery
GB/T 3414-1994 Hot-rolled special steels for coal mining machinery
This Standard specifies requirements, test methods, inspection rules, packaging, marking and quality certificate for the hot-rolled special steel used for coal mining machinery. This Standard applies to hot-rolled special steel of......
38-50 kg per meter rail technical conditions for railways (GB 2585-1981)
GB 2585-1981 Railway 38~50 kg/m Steel Rail Technical Conditions
General
This standard specifies general steel rail technical conditions. 38~50 kg/m. The raw materials of steel rail are 65mn and 60SI2MnA. Rolling technology should be adopted in production. The bottom of the steel rail should be ......
General cold-formed open section steel (GB/T6723-1986)
，介绍GB/T6723-1986《通用冷弯开口型钢》的标准。
General Cold-Bent Open Section Steel GB/T6723-1986
GB/T6723-1986, the standard for General Cold-Bent Open Section Steel, specifies the requirements, standards, and test methods for constructing cold-bent open sections for use in reinforced concrete ......
Extruded copper pipe GB 1528–87
1. Introduction
Copper tubes are widely used in a variety of industries due to their properties of having thermal and electrical conductivity, hardness and corrosion resistance. Due to this, the manufacturing process and quality control of copper tubes are of great importance. Copper tubes can be......
Cold drawn seamless special-shaped steel pipe GB 3094-82
Cold drawn Seamless profiled Steel Pipe
Grade GB 3094-82 is cold drawn seamless profiled steel pipe suited for hydraulic and locomotive applications. Providing specialised shaping and forming, with good surface finish, Grade GB 3094-82 delivers improved performance and stability in demanding envi......
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