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Two little knowledge of hardware stainless steel fasteners
2018-05
Fasteners are made of stainless steel. It can be said that there are great advantages in all aspects of manufacturing, use or processing. Therefore, although the cost of fasteners made of stainless steel is relatively high, the cycle life is relatively short, but in the tight Among the firmware solutions, it is still a relatively economical one.
Development trend of high-strength fasteners and general-purpose components
My country's sales of mechanical fasteners and general parts and components have already ranked among the top in the world, and my country has become a major manufacturer of basic parts and components.
"High-strength fastener industry specification conditions"
High-strength fasteners are safety components widely used in automobiles, construction machinery, transportation, railways, bridge construction, aerospace, shipbuilding, electronic appliances and other industries. They are important key functional components and high-end products in fasteners.
Hexagon Nut Specifications, Hexagon Nut Specification Table
Hexagon Nut Specification Reference Standard GB/T90-1985 Fastener acceptance inspection, marking and packaging (EQV ISO3269:1984) GB/T196-1981 Ordinary thread, basic size (diameter 1~600mm) GB/T197-1981 Ordinary thread, tolerance and fit (diameter 1~355mm) GB/T1237-2000 Fastener marking method (EQV ISO 8991:1986)
In the third quarter, my country's fastener import and export value was 2.05 billion US dollars
According to statistics from China Customs, in the third quarter of 2017, the total import and export value of fasteners in my country was 2.05 billion US dollars, an increase of 6.2% over the same period last year (the same below); the total import and export volume was 784,400 tons, a decrease of 4.7% over the same period last year.
The "Encyclopedia" of the standard parts industry and the "Yongnian Standard Parts Chronicle" were published
A few days ago, after 2 years, the printing of the Yongnian Standard Records, divided into upper, middle and lower volumes, was completed and officially published. This encyclopedia of the standard parts industry records the development history of China's fastener capital for more than 50 years, and also witnesses the economic development process of my country's reform and opening up.
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