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Anonymous users2024-02-10There are many types of steel, which can generally be classified into four categories: profile, plate, tube and wire. 1. There are many varieties of section steel, which is a kind of solid strip steel with a certain cross-sectional shape and size. According to the different cross-sectional shapes, it is divided into two types: simple and complex cross-sections.
The former includes round bars, square bars, flat bars, hexagonal bars and angle bars; The latter includes rails, I-beams, channel steels, window frame steels and special-shaped steels. The diameter of the small round steel is called the wire. 2. Steel plates are divided into three types: thin plate (thickness <4mn), medium plate (thickness 4-25mn) and thick plate (thickness 25mm) according to different thicknesses.
3. Steel pipe This is a kind of long steel with hollow section. According to its different cross-sectional shapes, it can be divided into round pipes, square pipes, hexagonal pipes and various special-shaped cross-section steel pipes. According to different processing technology, it can be divided into two categories: seamless steel pipe and welded steel pipe.
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Anonymous users2024-02-09First of all, enter the three words (die steel), and then look at the exclusion of the word "advertisement" after each result, and select the company with natural ranking, and the word "snapshot" behind the natural ranking company.
Then write it down and choose twenty, the more the better.
Then enter the full names of these companies after entering (National Credit Information Publicity System) to check their real registered capital and business projects.
If the registered capital is less than 3 million, it has little strength.
There is no "import and export" in the business project, because there is no import and export right, it is impossible to have cheap and authentic imported steel.
The last few that remain are basically more powerful.
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Anonymous users2024-02-081.Beijing State Reserve Building Materials Market 2: Baiziwan Steel Market 3
Shanghai Baoshan Steel Market 2; Shanghai International Iron & Steel Service Code Elimination Center (Steel Ring) 4; Shanghai Jinshan Steel City 5; Shanghai Xianling Steel Market 6; Shanghai Songjiang Steel Market 7;East China Steel Market 8; Shanghai Longbridge Steel Spot Market 9; Baosteel yard mold sells Chuling steel market 10; Minmetals steel market.
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Anonymous users2024-02-07China Enterprise Confederation and China Entrepreneurs Association in Nanchang, Jiangxi.
The list of "Top 500 Chinese Enterprises" was released. There are 46 enterprises in the steel industry on the list, and the overall situation of the iron and steel enterprise group has improved, but compared with last year, the number of companies on the list has decreased.
Ranking of Chinese iron and steel companies
Combined with the companies on the list last year and the companies on the list this year, it can be seen that the non-ferrous enterprise group has turned around as a whole, but it is still a miserable operation, and the building materials enterprise group is in good condition. It is worth mentioning that in recent years, the development trend of steel logistics and e-commerce industry has been good, and Shanghai Ganglian E-commerce Co., Ltd. has been on the list for the first time this year, ranking 346th in the "Top 500 Chinese Enterprises".
China's top 10 iron and steel enterprisesChina Baowu Iron & Steel Group ****.
Ranked 44th) HBIS Group****.
Ranked 49th) Xinxing Jihua Group****.
Ranked 70th) Jiangsu Shagang Group ****.
Ranked 84th) Anshan Iron and Steel Group Corporation.
Rank 120).
Shougang Corporation.
Rank 121).
Tsingshan Holding Group****.
Rank 149).
Shandong Iron & Steel Group **** (ranked 150).
Zhongtian Iron and Steel Group****.
Rank 153).
Dongling Group shares **** (ranked 161).
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Types of steel and steel.
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