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:www.uhpl.cn

Wechat
Phone
主站蜘蛛池模板: 国产精品欧美一区二区在线看 | 亚洲免费福利 | 一区二区视频在线 | 中文在线视频 | 羞羞首页登录界面入口免费 | 午夜影院在线免费 | 日韩专区亚洲综合久久 | 欧美精品videos | 成人免费淫片95视频观看网站 | 精品欧美日韩一区二区 | 国产欧美日韩综合二区三区 | 日本一二线不卡在线观看 | 中文字幕人成不卡一区 | 欧美亚洲综合在线观看 | 日本三级成人中文字幕乱码 | 欧美军人男同69gay | 国产精品久久久久久久免费大片 | 国产一级鲁丝片 | 香蕉成人啪国产精品视频综合网 | www国产精品com | 自拍偷拍2019 | 性8成人有声小说在线播放 性freemovies中国群众 | 色视频在线播放 | 欧美性美 | 久久三级毛片 | 亚洲精品日韩一区二区日本 | 麻豆影视大全 | www.免费观看 | 黄色免费网站在线看 | 日本一级黄色大片 | 亚洲欧美bt | 天堂在线xw | 国产乱辈通伦影片在线播放亚洲 | 亚洲三级在线视频 | 高清在线亚洲精品国产二区 | 久久久久毛片成人精品 | 亚洲一级毛片免费在线观看 | 国产在线精品一区二区夜色 | 最近高清中文字幕免费 | 国产亚洲精品一区久久 | 午夜影院在线观看 |