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Unified numerical code system for steel and alloy grades (GB/T 17616-1998)
，题目为Steel and alloy grade number unified numerical code system(GB/T 17616-1998)
Steel and alloy grade number unified numerical code system (GB/T 17616-1998) is a standard regulating the uniform digital coding system for steel and alloy grades. This standard was initially established in 1998 and......
1056 
Avery
40 uses
，要求关联到课程、学习
To effectively utilize their precious leisure time and to pursue a higher education degree, many students choose to take online classes on the internet. Consequently, students and professionals now have more access to additional classes and knowledge than ever before. For som......
Cold-rolled steel strip for lamp holder (YB/T026-1992)
LED lamp head USES cold rolled steel strip (YB/T026-1992)
LED lighting technology is the main energy-saving lighting products of the 21st century, it has a visible light, infrared and ultraviolet radiation impact on the life, work and health of a person, so the choice of LED lamp head material is......
Chemical composition of titanium and titanium alloy grades GB 3620-83
内容
Introduction
GB 3620-83 is a Chinese national standard regarding chemical compositions for titanium and titanium alloys. It is important standard for a further understanding of the chemical compositions of titanium and titanium alloys in China. The standard was issued by the General Administr......
Brass plate GB 2041–89
Introduction
Brass is an alloy of copper and zinc. It has a beautiful golden color that is why it is also known as Gold of Non-Ferrous Metals. Brass is also one of the most popular materials used in the production of different objects due to its high mechanical properties, low cost and excellent ......
Copper and copper alloy electrodes GB 3670-83
Introduction
Copper and copper alloys welding rods are widely used in many fields due to their excellent electrical conductivity, ductility, high strength and excellent corrosion resistance. GB3670-83 is a national standard for copper and copper alloys welding rods. The standard requires that the......
Steel grade and chemical composition of Japanese JIS standard high manganese cast steel
Japan JIS Standard High Manganese Steel Grades and Chemical Compositions
High manganese steel is steel with a high content of manganese relative to other metals in the alloy. It has a low carbon content used in a wide variety of industries, primarily in engineering applications. Manganese is adde......
Domestic ferrosilicon standard (GB2277-87)
（自己参考内容自行创作）
The national standard GB2277-87 Silicon Iron was formulated by the State Bureau of Quality and Technical Supervision (now the General Administration of Quality Supervision, Inspection and Quarantine) in October 1987 and promulgated on January 8, 1988. The implementation dat......
High-quality carbon structural steel technical requirements GB 699-88
GB 699-88 Standard for High Quality Carbon Structural Steel
GB 699-88 Standard for High Quality Carbon Structural Steel is a Chinese standard for certification of steel and other related products intended for use in buildings, bridges and other structures. The primary purpose of the standard is t......
Brief introduction to the representation method of metal material grades in China (GB)
Introduction
China has a unique system of numbering and coding a wide range of metallic materials, called Chinese Standard (GB) Metal Materials Numbering System (in Chinese “gong bu”). Generally, it is a four-digit designations for classifying and determining basic Metal materials.
The Purpose......
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