国产精品入口免费麻豆-国产精品三级视频-国产精品三级一区二区-国产精品三级在线观看-五月在线视频-五月综合视频

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:www.aai-aa.com.cn

Wechat
Phone
主站蜘蛛池模板: 噜噜噜噜天天狠狠| 免费观看在线视频| 玖玖福利| 国产精品9999| 日本三人交xxx69视频| 一区二区三区网站| 俄罗斯aaaaa一级毛片| 性欧美高清视频| 日韩免费三级| 久久九九色| 在线色片| 国产一区二区三区波多野吉衣| 四虎永久免费地ww4hu57| 日本不卡一| 午夜香港三级在线观看网| 欧美性精品videofree| 国产乱人视频在线看| 午夜 福利| tube性欧美另类| 日本欧美一区二区三区免费不卡| 亚洲一卡二卡三卡| 欧美婷婷色| 成年啪啪网站免费播放看| 女人被两根一起进3p在线观看 | 四虎884tt紧急大通知| xxxx黄| 色wwww| 色婷婷综合久久久中文字幕| 红怡院欧洲| 色综合综合色| 亚洲播放| 日韩欧美不卡片| www.黄色一片| 国产福利免费观看| 男男之h啪肉np文| 日本免费三级网站| 在线观看s色| 欧美黄色大全| 天堂bt在线网bt| 成人a毛片手机免费播放| 国产精品久久精品福利网站|