We are China manufacturer of high quality grade b7, b16 Threaded Rods and threaded bars in astm a193 standard. Our advantages and more services of threaded steel rods includes:
1) Wide range of diameters from 1/2" - 4"
2) Customized Length from 100mm to 12000mm
3) Good threads at 60 degree
4) Good straightness: 1mm/m max
5) Even hardness on whole bars
5) Proper mechanical properties
7) Full sets of testing equipment: Surface, Dimenstion. Mechanical properties testing
8) Fast delivery time
B7 Threaded Rod,A193 B7 Threaded Rod,Astm A193 Threaded Rods,Alloy Steel Threaded Rod SHANDONG LE REN SPECIAL STEEL CO., LTD. , https://www.sdbrightsteelbar.com
These manufacturers have their own production catalog, and its external identification model code is: Liberation CA Dongfeng EQ DFL DFAC Jianghuai HFC North Futian BJ Northern Mercedes ND China National Heavy Duty Truck ZZ Shaanxi Heavy Duty Truck SX Chongqing Hongyan CQ Chongqing Iron Horse XC An Huai Hualing HN Jiangling JX Isuzu (Qingling) QL and so on.
The production bases and distributions of the above manufacturers are as follows: Liberation has Changchun, Qingdao, Chongqing, and Liuzhou. The main identification method is as follows: Example: The last letter of CA1170P7K2L11T4E is to identify the home base of its product. If the latter letter is A80, it will be the liberation Qingdao base, and A95 will be Liuzhou Special Steam.
Most of Dongfeng's products belong to the EQ series, including Dongfeng of Xinjiang, Dongfeng of Hubei, Dongfeng of Shenzhen, Dongfeng of Hangzhou (Dongfeng Nissan ( DN ) and Dongfeng DH ) and Liuzhou Dongfeng . (In addition, EQ catalog also obtains its own independent production catalogue for LZ. ), Yunnan Dongfeng. Hubei Dongfeng is divided into: EQ series DFL series (Tianlong Tianjin) DFAC series (Dongfeng light truck below 180 horsepower)
In addition to the above two large state-owned enterprises, other manufacturers are basically localized production, and their serial letters are very characteristic of geographical attributes.
Here I mainly explain the problem of “Steyrâ€: Most of the people in our automotive industry are often confused by Steyr in Shaanxi and Steyr in Shandong (China National Heavy Dumb), although they belong to different manufacturers but all Heavy trucks belong to the same class. I think this is the main reason to get everyone confused. In fact, as long as you understand the origin of "Steyr," it will be very clear: "Steyr" was first introduced in Shaanxi as a heavy-duty automobile production line introduced by China to fill the domestic imbalance, when the country was in Shaanxi. Established China Heavy-duty Truck Group Co., Ltd., and launched a full range of "Steyr" production lines for light, medium-sized, passenger, and heavy-duty vehicles. However, due to various reasons, Shaanxi-based "Steyr" only used heavy-duty vehicles and special-vehicle production lines. Leave other production equipment idle. In order to adapt to the development of the market, China Heavy-duty Truck Group Co., Ltd. obtained a naming rights for Shandong Heavy-duty Truck Group and obtained a set of production drawings and some equipment. Chongqing Hongyan obtained some technical support and production equipment, and Chongqing later in the production process. The "Steyr" name is no longer used. The majority of the "Steyr" production platforms also belong to Shaanxi Zhongqi. After the separation, Shandong Heavy Duty Truck mainly concentrated on the development of heavy-duty autos. Since the joint venture with Hong Kong, Shandong Heavy Duty Truck Co., Ltd. has also developed the "Steyr" brand, such as: HOWO Haoyun Yellow Marshal Gold Prince and other series. (We often see in the car announcement Starsky - Steyr which has the existence of a gold prince such as: ZZ3251M3841C main identification method is: the fourth digit behind the letter is " 1 " if it is " 3 " represents "Tel" " 4 " on behalf of the Yellow River Marshal " 5 " represents Haoyun " 7 " on behalf of Hao Hao).
The meaning of the liberation chassis model: CA5253GJYP7K2L11T3E where P7 represents the high-top two-bedroom cab (if the PK2 represents a narrow-body cab) L11 represents 9.5 boxes of long T3 on behalf of the bridge E on behalf of Euro III emission standards.
Special car chassis beginner basic knowledge
China's current commercial vehicles are divided into three categories: one for light vehicles, two for medium-sized vehicles, and three for heavy vehicles. In these three categories, there are seven categories. In China, these three types of relatively complete manufacturers are: Liberation Dongfeng Jianghuai Beiqi Foton Heavy-duty Truck Manufacturers: Heavy Truck Shaanxi Automobile Red Rock Iron Horse Hualing Northern Benz Common Light Truck Chassis Manufacturers: Jiangling Isuzu Subdivision of Seven Small Classes Let's take ZZ1311N4711 as an example: The first “ 1 †after the letter represents the general truck series. If “ 2 â€, it represents the full-drive series. If " 3 " represents the dump truck series, " 4 " represents the tractor series, " 5 " represents the tank truck series, and " 6 " is the passenger train series " 9 " represents the semi-trailer series. Under normal circumstances " 1 " and " 5 " can be used universally, while " 2 " full-drive models also include: general trucks, dump trucks, tractors (gun cars, guided missile trucks) tank cars (rare) Passenger cars these five small categories.