Search results for keyword: 469
Hot-rolled U-shaped steel for mine roadway support (GB/T4697-1991)
U-steel for Roadway Support in Mines
U-steel is a type of material used to provide roadway support within mines. The use of U-steel for the support of roadway structures is a common practice throughout the mining industry, due to its formability and strength. U-steel can be either hot or cold ro......
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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......
Mine steel GB 4697
GB 4697 Steel for Mining
Steel for mining has become an essential component for the mining industry for many years. As a matter of fact, it can be said that steel for mining is a huge improvement from the mining practices that had been in use during the days of the gold rush. As mining technique......
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......
Summary of Vacuum Pump Standards
Vacuum Pump Standards Summary
With the development of vacuum pump technology and its wide range of practical applications, standards for vacuum pumps have been established at various levels in the world. International standards, national standards and various standards of vacuum pump industry are......
Introduction to ISO Standards
International Organization for Standardization (ISO) is an independent, non-governmental, international organization that develops standards, definitions, and specifications to help promote quality and compatibility in global trade. The organizations primary role is to promote the exchange of good......
Melt ALCOA469 method purification
Alcoa 469 is an alloy that is used in organizational and aerospace applications, as well as the automotive industry, for its high strength and corrosion resistance. It is a nickel-base alloy composed of about 15% chromium, 6 % molybdenum and a trace of titanium. The major advantage of using Alcoa ......
2008 Fortune Global 500 Ranking (401-500)
Global 500 Ranking 401-500
The annual Global 500 list ranks the world’s largest corporations by their annual revenue. This year’s edition ranks the top 500 corporations from around the world based on their total revenues for the fiscal year 2008. An analysis of the list reveals that some of the......
Jiangsu Province Suzhong Construction Group Co., Ltd.
Jiangsu Suzhong Construction Group Co., Ltd. is a large comprehensive construction enterprise integrating engineering design and construction, equipment installation, investment, real estate development and operations, energy conservation and environmental protection, engineering consulting and s......
Cangzhou Bohai Explosion-proof Special Tools Co., Ltd.
Cangzhou Bohai Anti-Explosive Specialty Tool Co., Ltd.
Cangzhou Bohai Anti-Explosive Specialty Tool Co., Ltd., established in 2014, is a modern high-tech manufacturing enterprise equipped with a complete set of advanced scientific research, testing, and production equipment. It specializes in th......
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