The country wants to build railways, so how many listed companies are there that produce steel for r

You also give too little to give, who am I going to send with such a little point, and ask important questions.

The steel group companies I'm talking about are all large national enterprises, including the world's top 500 companies.

Jinan Iron and Steel Group****.

Anshan Iron & Steel Group Company.

Anyang Iron & Steel Group Co., Ltd.

Baotou Iron & Steel (Group) Co., Ltd.

Laigang Group****.

Taiyuan Iron & Steel (Group)****.

Jinghua Nippon Steel Holding Group Co., Ltd.

Baosteel Group. Advance Steel Group.

Changgang Group. Hangzhou Iron and Steel Group Corporation.

Pangang Group. Guangxi Liuzhou Iron and Steel (Group) Company.

Kunming Iron & Steel Group Co., Ltd.

Wuhan Iron and Steel (Group) Company.

Benxi Iron & Steel. Jiuquan Iron & Steel Group.

Beigang Group. Tangshan Iron & Steel Co., Ltd. ****.

Handan Iron and Steel Group. Guangzhou Iron & Steel Group.

Heavy Steel Group. Qingdao Iron & Steel Holding Group.

Lianyuan Iron and Steel Group Company.

Zhongtian Iron and Steel Group****.

Guangdong Shaogang Group ****.

China Steel Corporation.

Ronggang Group. China Shougang Group.

Shandong Taishan Iron and Steel Group.

Weifang Iron and Steel Group Corporation.

Maanshan Iron and Steel Co., Ltd. ****.

Xingtai Iron & Steel Co., Ltd.

Hebei Iron and Steel Group.

Among the four domestic steel companies that produce steel rails, they are:

Anshan Iron and Steel Co., Ltd. (Baotou Iron and Steel Co., Ltd. (Pangang Iron and Steel Co., Ltd. (Wuhan Iron and Steel Co., Ltd.).

Among them, the combined production capacity of the new and old production lines of Baotou Iron and Steel is 1.2 million tons, accounting for 1 3 of the national production capacity, Pangang is also a lot, Anshan Iron and Steel is 1 million tons, and the production line of Wuhan Iron and Steel has just been put into operation less than 300,000 tons this year. According to the calculation of more than 3,000 yuan per ton, the income of Baotou Steel, Anshan Iron and Steel and Wuhan Iron and Steel in the field of rails has reached at least 3.6 billion yuan, 3 billion yuan and 1 billion yuan.

Atmospheric corrosion-resistant steel for railway vehicles is produced by Wuhan Iron and Steel Co., Ltd. (600005) and Baosteel Co., Ltd. (600019).

Masteel Co., Ltd. (600808) is a major producer of railway passenger cars in China: train wheels and rings.

The first in the industry is Baotou Iron and Steel Company.

The second in the industry is Anshan Iron and Steel.

The third in the industry is Ma'anshan Iron and Steel Company.

Masteel, Baotou Steel, Baosteel.

Newly built passenger dedicated railways designed to run 250 km-h/h (including reserved) and above EMU trains, with an initial operating speed of not less than 200 km-h. The new construction is different from the speed of the existing line. The main point is that the speed is not less than 250 per hour and the passenger specificity.

The official standard system for China's high-speed rail is the High-Speed Railway Design Code 2014.

Maanshan Iron and Steel Co., Ltd. is a state-owned enterprise Maanshan Iron and Steel Company ("formerly Maanshan Iron and Steel Co., Ltd., now renamed Masteel (Group) Holdings") on the basis of reorganization and establishment of a share****, on September 1, 1993 in the People's Republic of China ("China") Anhui Province Ma'anshan City, registered and established, enterprise legal person business license registration number is Enterprise Shares Anhui Zong Zi No. 000970. The company is headquartered at No. 8, Hongqi Middle Road, Ma'anshan City, Anhui Province, China.

Baotou Iron and Steel (Group) Co., Ltd. is one of the earliest steel industrial bases built after the founding of the People's Republic of China, which began construction in 1954 and was put into operation in 1959. Baotou Iron & Steel has two listed companies, "Baotou Iron and Steel Co., Ltd." and "Baotou Iron and Steel Rare Earth", which is one of the main rail production bases in China.

1. One of the seamless steel pipe production bases.

1. The largest plate production base in North China is the origin of the world's rare earth industry and the largest rare earth scientific research and production base. It has always been committed to diversified development, in addition to the two main industries of steel and rare earth, it also has two major industries of mining and non-steel. During the "Twelfth Five-Year Plan" period, it will build a "large steel package" to become the world's largest rare earth steel production base and the most competitive rare earth production and scientific research base, with an annual sales revenue of more than 100 billion yuan.

Baosteel: Baosteel Group is an important state-owned backbone enterprise supervised by the State-owned Assets Supervision and Administration Commission, and its headquarters is located in Shanghai. Subsidiary Baoshan Iron and Steel Co., Ltd., referred to as Baosteel Co., Ltd.

Baosteel Group Corporation ("Baosteel") is the largest and most modern steel conglomerate in China.

High-speed rail, conventional passenger and freight railway, heavy freight rail, China's largest production enterprise is Anshan Iron and Steel Group (Anshan Iron and Steel Company and Panzhihua Iron and Steel Company), and it is also one of the world's few rail factories, production and market share in the country far ahead, it can be said that there is a railway where there is Anshan Iron and Steel rail.

Baotou Iron and Steel, Baosteel, Masteel, Anshan Iron and Steel, etc.

This mat is too hard, I need to change it.59

It's a new energy source. China's auto industry makes full use of both domestic and international resourcesA critical period to develop both domestic and international markets. Purely from the fierce competition in the domestic market, the expectation of the development prospects and profit level of the industry is significantly underestimated.

Since the beginning of the new century, with the accession to the WTO and the high growth rate of the domestic economy, the demand for automobiles has maintained considerable heat. With the economic growth and the improvement of international competitiveness, commercial vehicles are growing steadily and the market competition structure is becoming reasonable. The combination of a sharp decline in passenger cars** and an increase in per capita income has led to a rapid increase in demand.

The body structure of the automobile mainly includes:

Body shells, doors, windows, front sheet metal parts, interior and exterior body trim parts and body accessories, seats, ventilation, heating, air conditioning, air conditioning devices, etc. Trucks and special purpose vehicles also include trunks and other equipment.

The body shell is the installation basis of all body parts, usually refers to the rigid space structure composed of the main load-bearing elements such as longitudinals, beams and pillars, as well as the sheet parts connected with them.

The top ten most promising industries are the robot industry, fashion, environmental protection industry, new energy industry, retail industry, glasses manufacturing and sales industry, insurance industry, logistics and express industry, tourism industry, and smart home. 1. Robot industry The competitiveness of domestic industrial robot enterprises is weak, and the domestic market share is very low. In 2015, Fanuc of Japan and library of Germany.

1. The construction of a 1-kilometer highway will consume 500-1500 tons of steel and 4000 to 12000 tons of cement.

2. High-speed railway, referred to as "high-speed rail", refers to a railway system that achieves a maximum operating rate of not less than 200 kilometers per hour by transforming the original line (linearization and track gauge standardization), or specially builds a new "high-speed new line" to achieve an operating rate of at least 250 kilometers per hour. In addition to the train reaching a certain speed standard in the operation of high-speed railway, vehicles, rails, and operations need to be upgraded.

3. China's "high-speed rail" and some "bullet trains" and "intercity trains" belong to high-speed rail, that is, trains starting with the letters "G", "D" and "C".

Road steel is mainly used in new railways, old railway maintenance and reselection, locomotive and vehicle manufacturing and maintenance, railway bridge construction, etc., its main varieties are: line steel: sleeper steel (quenched and tempered steel bar, finished rolled threaded steel bar, high-strength bolts, prestressed steel wire, etc.), rail and accessories (accessories include fishtail plate, backing plate, fork rail, gauge baffle, etc.), bridge steel (H-shaped steel, I-beam, channel steel, angle steel and bridge plates of various sizes, etc.), In addition, there are steels for the construction of tunnels and for the maintenance and repair of lines.

Steel for railway wagons: steel for railway wagons is mainly high-strength and atmospheric corrosion-resistant steel, and the main grades are Q400NQRI, Q450NQRI, Q500NQRI, Q550NQRI, etc.

Electrified railway steel: H-beams, steel strands, weather-resistant steels and steel pipes of various sizes, etc.

Rail. Steel rails are the basis for ensuring the safe, stable, comfortable and fast transportation of passenger trains. Compared with ordinary lines, railway passenger lines, high-speed and heavy-haul lines have strict requirements for rail safety performance.

The function of the rail is to directly bear the weight of the train and its load transmitted by the wheels, and to guide the direction of the train's travel. In order to withstand the pressure and impact load of locomotives and rolling stock, the rail must have sufficient strength, hardness and toughness, as well as good welding performance. Rails are also divided into three grades according to different tensile strengths, including ordinary rails (tensile strength of 586-785MPa), wear-resistant rails (tensile strength of 883-1030MPa) and special rails (tensile strength of 1079-1226MPa).

In order to improve the passing capacity of the line, China's railways are gradually phasing out small-weight steel rails, and the main lines are generally laid with 60 kilograms or 75 kilograms of heavy-duty steel rails.

At present, there are three to four companies involved in the R&D and trial production projects of high-end products of train wheels, among which the leading R&D progress is Masteel. High-power locomotive wheels, including bullet trains and high-speed rail wheels, have always been a technical shortcoming in China. At present, China has mastered the core technologies of high-power electric locomotive assembly, car body, bogie, main system, main converter, drive device, traction motor, braking system, etc., and has also realized the localization of high-speed rails with a speed of 350 kilometers per hour, but the wheels have been dependent on imports.

Resources.

Kilometer = 42,500 meters of Yuanxian chain, set to use Paiwang x rails, 16:100=x:42500, 100x=16 42,500, x=6800, answer: to hail with 6,800 rails