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: 一级做a爰片久久毛片看看 一级做a爰片久久毛片美女 | 偷自视频区视频真实在线 | 亚洲日韩中文字幕一区 | 日本高清护士xxxx一21 | 亚洲成人免费网站 | 成人不卡| 黄网站免费大全 | 最近的中文字幕视频大全高清 | 欧美一级免费片 | 三级小说第一页 | 国产亚洲一区在线 | 国产欧美日韩在线一区二区不卡 | 2022国产福利在线观看 | 国产精品视频国产永久视频 | 久久精品国产免费高清 | 国产高清吃奶成免费视频网站 | 五月天欧美| 欧美性大交大片在线 | 在线观看成年人视频 | 亚洲视频欧美 | 亚洲国产精品久久久久久 | www91在线观看| 一区二区在线欧美日韩中文 | 精品一区二区三区在线观看 | 色综合欧美综合天天综合 | 亚洲国产日韩欧美在线a乱码 | 久久成人精品免费播放 | 国产成人精品日本亚洲18图 | 久久www免费人成_看片高清 | 视频在线观看视频 | 国产精品久久久免费视频 | 久久免费精品 | 欧美一区二区三区不卡 | 一级特黄特黄毛片欧美的 | 黑人极品videos精品欧美裸 | 国产三级自拍视频 | 国产精品免费大片一区二区 | 一级毛片aa | 韩日精品| 日韩欧美国产中文 | 免费国产阿v视频在线观看 免费国产成高清人在线视频 |