国产精品 视频一区 二区三区-国产精品 主播精选 网红-国产精品_国产精品_国产精品-国产精品1-欧美女人性视频-欧美欧美乱码一二三区

Welcome to Ningbo Beilun Longsheng Hardware Co., Ltd!

中文版English

NEWS CENTER

NEWS CENTER

High strength fasteners in short supply should vigorously develop high-end routes

2023-11-02

Although China's fastener production accounts for a quarter of the global production, the majority are low-strength and low-grade products. As the main basic component product of the mechanical industry, the development of the mechanical industry also puts higher requirements on fastener products. Ordinary standard fasteners have always been in oversupply, while high-end fasteners (such as high-temperature, special-shaped, titanium plastic composite, and special performance fasteners) are in short supply and still rely on imports. Therefore, the National Machinery Administration has listed "ordinary standard fasteners" as restricted products for development, and "high-strength special-shaped fasteners" as currently encouraged products for development. With the improvement of national industrialization level and technological progress, the usage of high-strength fasteners is gradually increasing.

The fastener market in China has achieved great development, and the country has provided certain support in technology introduction, technological transformation, scientific research and development, etc. However, there is still a significant gap in China's fastener technology compared to foreign levels, which is manifested in: a small number of high-end varieties, low level, unstable quality, high early failure rate, and poor reliability. Moreover, among the technologies introduced in China, foreign drawings and material compositions can be provided to China, but in terms of heat treatment, foreign countries are strictly confidential, and we can learn from them quite limited. Therefore, for the future development of China's fastener industry, it is necessary to establish the core competitiveness of enterprises and cultivate the internal driving force of the industry, moving from a manufacturing powerhouse to a manufacturing powerhouse.

With the nationwide infrastructure policy, the conservative quantity of construction machinery such as loaders, excavators, and rollers will reach 6 million units, with an annual sales volume of around 50000 units. Based on this, it is estimated that the annual demand for high-strength fasteners is about 20000 to 30000 tons. At the same time, China's national economic construction is entering a new stage of development, and advanced manufacturing represented by high-speed railways, aviation, highways, large power generation equipment, large ships, and large complete sets of equipment will also enter important development directions.

In terms of road transportation: National key construction projects such as high-speed rail, aerospace, aviation, highways, and airports are providing opportunities for tight enterprises to move towards the high-end. Boeing plans to add 3400 aircraft in the next 20 years, and the National Development and Reform Commission will invest 800 billion yuan to build rail transit in 6 cities. According to the plan to build urban rail transit project cities in 36 cities, by 2020, the new operating mileage of urban rail transit will reach 6560 kilometers, and the demand for rail fasteners will reach 5.5-7 billion yuan. These large-scale projects will greatly increase the demand for high-end fasteners such as high-strength fasteners and titanium alloys, and it is not impossible to remove the low-end labels.

 

 

筆記

Contact Us

Ningbo Beilun Longsheng Hardware Products Co., Ltd
Contact: Mr. Li
Tel:0574-86807658 13858261185
Fax:0574-86807668
E-mail:nbls_andy@126.com
Address: Beilun District of Ningbo City, Daqi town road 401
Website:m.uhpl.cn

Wechat
Phone
主站蜘蛛池模板: 亚洲国产图片 | 精品久久久久久国产91 | 精品一区二区三区免费站 | 成人天堂在线 | 最近伦中文字幕高清字幕mv | 成人在线亚洲 | 性xxxxfreexxxxx欧美吹潮 | 精品国产一区二区三区19 | 他添的我好湿好爽视频 | 欧美色图偷窥自拍 | 英国美女一级毛片视频 | 澳门成人免费永久视频 | 日本一区二区三区在线网 | 欧美a级黄色片 | 国产欧美亚洲专区第一页 | 国产欧美日韩第一页 | 国产日韩欧美一区二区 | 亚洲天堂成人网 | 69做爰视频在线观看 | 久久精品国产一区二区 | 国产xxx护士爽免费看 | 亚洲欧美视频一区二区三区 | 成人淫片 | 亚洲制服一区 | 久久久青草青青国产亚洲免观 | 越猛烈欧美xx00动态图带声音 | 久久99亚洲精品一区二区 | 国产视频综合 | 久久精品国内一区二区三区 | 波多野结衣免费视频观看 | 欧美在线播放成人免费 | 国产女人18一级毛片视频 | 手机在线看福利 | 久久综合久久久久 | 国内自拍亚洲 | 欧美亚洲不卡 | 欧美人与动性视频在线观 | 最近中文字幕高清字幕 | 精品乱码一区二区三区四区 | 18女人水真多免费高清毛片 | 日本护士做xxxwww |