Introduction to JIS & KS Flanges
JIS (Japanese Industrial Standards) flanges and KS (Korean Industrial Standards) flanges are two important types of flanges widely used in various industries. JIS flanges follow the standards established by Japan, which are known for their high – precision manufacturing requirements and strict quality control. They are commonly used in industries such as petrochemical, power generation, and shipbuilding in Japan and some other Asian countries. KS flanges, on the other hand, adhere to the Korean industrial standards. These flanges are designed to meet the specific needs of the Korean market and are also popular in international projects that have business connections with Korea. They are characterized by their durability, good sealing performance, and compatibility with Korean – made equipment. JIS & KS Flanges
Now, let’s take a look at the 10 leading JIS & KS flanges factories in China in 2026.
1. Zhejiang Chengjiu Pipeline Co., Ltd.
Zhejiang Chengjiu Pipeline Co., Ltd. is a well – established enterprise in the field of pipeline components. With years of experience in the manufacturing industry, it has gained a solid reputation both at home and abroad. The company is equipped with advanced production equipment and a professional R & D team, which enables it to produce high – quality JIS and KS flanges.
The company’s production process is strictly in line with international standards, ensuring the stability and reliability of product quality. It has a complete quality control system, from raw material inspection to the final product testing, every step is carefully monitored.
Features in JIS & KS Flanges:
- Precision Manufacturing: Zhejiang Chengjiu Pipeline Co., Ltd. can produce JIS and KS flanges with high precision, meeting the strict dimensional requirements of these standards.
- Diverse Specifications: It offers a wide range of flange specifications to meet the different needs of customers in various industries.
- Quality Assurance: The flanges produced are of high quality, with excellent mechanical properties and corrosion resistance.
Advantages:
- Professional Team: The company has a group of experienced and professional technicians and workers who can ensure the smooth progress of production.
- Cost – effective: With efficient production processes and reasonable management, the company can offer cost – effective products to customers.
- Good after – sales service: It provides prompt and high – quality after – sales service, solving customers’ problems in a timely manner.
Website: https://www.cncjflange.com/
2. Jiangsu Feiya Metal Products Co., Ltd.
Jiangsu Feiya Metal Products Co., Ltd. has been focusing on the production of metal flanges for many years. It is located in an area with a well – developed manufacturing industry in Jiangsu Province, which provides it with convenient access to raw materials and a large number of skilled workers. The company has a modern production workshop and advanced processing technology, which allows it to mass – produce JIS and KS flanges.
The company emphasizes product innovation and constantly invests in R & D to improve the performance of its flanges. It also pays great attention to environmental protection in the production process, using clean energy and advanced waste treatment methods.
Features in JIS & KS Flanges:
- Innovative Design: The company’s R & D team continuously designs new types of JIS and KS flanges to meet the changing market needs.
- High – strength Materials: It uses high – strength metal materials to ensure the durability of flanges under high – pressure and high – temperature conditions.
- Surface Treatment: The flanges are treated with advanced surface treatment technology to enhance their anti – corrosion ability.
Advantages:
- Large – scale Production: With a large – scale production capacity, the company can quickly meet the large – quantity orders of customers.
- Technology – driven: The use of advanced production technology and equipment gives the company a competitive edge in the market.
- Environmental Awareness: The company’s focus on environmental protection not only meets the social responsibility but also helps to improve its brand image.
3. Hebei Shengtai Pipe Fittings Co., Ltd.
Hebei Shengtai Pipe Fittings Co., Ltd. is a well – known enterprise in the pipe fittings industry. It has a long – standing history in manufacturing flanges and has established a wide sales network both in China and overseas. The company has a strict quality management system and has passed a series of international quality certifications, such as ISO 9001.
The company’s production base is equipped with a full set of production equipment, including forging, machining, and heat – treatment equipment. This enables it to produce high – quality JIS and KS flanges from the beginning of raw material processing to the final product assembly.
Features in JIS & KS Flanges:
- Complete Production Process: From raw material forging to the final product finishing, the company can complete the whole production process independently, ensuring product quality control.
- Custom – made Service: It can provide custom – made JIS and KS flanges according to customers’ specific requirements, such as special sizes, materials, and connection methods.
- Stable Quality: Thanks to its strict quality management system, the quality of the flanges is very stable, which is highly recognized by customers.
Advantages:
- Rich Experience: With many years of experience in the industry, the company has accumulated a lot of technical know – how and production experience.
- Certified Quality: The international quality certifications it has obtained prove the high quality of its products, which is conducive to expanding the international market.
- Good Reputation: The company has a good reputation in the market, which helps to attract more customers and establish long – term cooperative relationships.
4. Shandong Hongda Flange Manufacturing Co., Ltd.
Shandong Hongda Flange Manufacturing Co., Ltd. is located in Shandong Province, a major industrial province in China. The company has a strong technical force and a large number of professional technicians. It has introduced advanced production technology and equipment from abroad, which has improved its production efficiency and product quality.
The company is committed to providing high – quality products and services to customers. It has a customer – oriented business philosophy and always puts customers’ needs first.
Features in JIS & KS Flanges:
- Advanced Technology: The use of advanced foreign – introduced technology enables the company to produce JIS and KS flanges with high precision and excellent performance.
- High – quality Service: The company provides comprehensive pre – sales, in – sales, and after – sales services, ensuring customers’ satisfaction throughout the purchasing process.
- Product Upgrades: It continuously upgrades its JIS and KS flanges products according to the development of the industry and customers’ feedback.
Advantages:
- Technical Innovation: The company’s investment in technology innovation helps it to stay ahead in the market competition.
- Customer – centric: By focusing on customers’ needs, the company can build long – term and stable relationships with customers.
- Industry Influence: It has a certain influence in the industry, which is beneficial to promoting the development of the entire flange manufacturing industry.
5. Tianjin Xingang Flange Co., Ltd.
Tianjin Xingang Flange Co., Ltd. is located in Tianjin, a major port city in China. This geographical advantage gives the company convenient access to international trade and a large number of shipping resources. The company has a long – standing history in the flange manufacturing industry and has a deep understanding of the international market demand for JIS and KS flanges.
The company has a complete production line and a professional quality inspection team. It strictly controls the quality of products at every stage of production to ensure that the flanges meet the high – level requirements of JIS and KS standards.
Features in JIS & KS Flanges:
- International Market – Oriented: The company’s products are mainly sold to international markets, especially in Japan and Korea. It has a good understanding of the international market demand and can produce flanges that meet the local customers’ needs.
- Quality Inspection System: The strict quality inspection system ensures that each flange leaving the factory is of high quality.
- Shipping Convenience: The location in a port city makes the transportation of products more convenient and cost – effective.
Advantages:
- Geographical Advantage: The port – city location provides the company with unique advantages in international trade and logistics.
- Market Experience: The long – term experience in the international market gives the company an edge in understanding market trends and customer preferences.
- Quality Assurance: The high – standard quality inspection system is the key to the company’s success in the international market.
6. Guangdong Jinyi Flange Co., Ltd.
Guangdong Jinyi Flange Co., Ltd. is located in Guangdong Province, a region with a high – level manufacturing industry and a developed economy. The company has a modern management system and a young and innovative R & D team. It is committed to combining advanced technology with traditional manufacturing processes to produce high – end JIS and KS flanges.
The company uses advanced simulation software to optimize the design of flanges, which can improve the performance and reduce the cost of products.
Features in JIS & KS Flanges:
- High – end Products: The company focuses on producing high – end JIS and KS flanges with advanced materials and technology, which are suitable for high – demand applications.
- Design Optimization: Through simulation software, the company can optimize the flange design, improving its mechanical performance and reducing its weight.
- E – commerce Platform: It uses e – commerce platforms to expand its sales channels and improve market visibility.
Advantages:
- Innovative Management: The modern management system and innovative thinking enable the company to respond quickly to market changes.
- Cost – Optimization: The design optimization helps to reduce production costs while maintaining high – quality products.
- Market Expansion: The use of e – commerce platforms helps the company to reach a wider range of customers both at home and abroad.
7. Liaoning Huayang Flange Co., Ltd.
Liaoning Huayang Flange Co., Ltd. is located in Liaoning Province, an old industrial base in China. The company has a rich industrial heritage and a large number of experienced technicians. It has a large – scale production base and a complete set of production equipment, which can produce various types of JIS and KS flanges in large quantities.
The company attaches great importance to the training and development of employees, continuously improving their professional skills and work efficiency.
Features in JIS & KS Flanges:
- Large – quantity Production Capacity: The company can meet the large – quantity orders of customers in a short time, thanks to its large – scale production base and efficient production equipment.
- Skilled Workforce: The experienced technicians and workers can ensure the high – quality production of JIS and KS flanges.
- Product Standardization: The company adheres to strict product standardization, ensuring the uniformity and stability of product quality.
Advantages:
- Industrial Heritage: The long – standing industrial heritage in Liaoning Province provides the company with a solid foundation and technical support.
- Employee Training: The emphasis on employee training helps to improve the overall quality of the company’s labor force.
- Product Standardization Advantage: The standardized products are easier to meet the requirements of large – scale projects and international customers.
8. Fujian Longxiang Flange Co., Ltd.
Fujian Longxiang Flange Co., Ltd. is located in Fujian Province, a coastal province with a developed foreign – trade economy. The company has established long – term cooperative relationships with many overseas customers. It focuses on the production of high – quality JIS and KS flanges with a focus on environmental protection and energy – saving.
The company uses advanced production technology to reduce energy consumption during the production process and uses environmentally friendly materials to make flanges.
Features in JIS & KS Flanges:
- Environmental – friendly Products: The company’s JIS and KS flanges are made of environmentally friendly materials and produced with energy – saving technology, meeting the requirements of sustainable development.
- Overseas Market Focus: The long – term cooperation with overseas customers gives the company a deep understanding of the international market demand for flanges.
- Energy – saving Production: The use of energy – saving production technology helps to reduce production costs and environmental impact.
Advantages:
- Foreign – trade Advantage: The coastal location and the developed foreign – trade economy in Fujian Province provide the company with convenient conditions for international trade.
- Sustainable Development: The focus on environmental protection and energy – saving not only meets the market demand but also helps to improve the company’s social image.
- Overseas Market Experience: The experience in dealing with overseas customers helps the company to expand its international market share.
9. Hubei Xinli Flange Manufacturing Co., Ltd.
Hubei Xinli Flange Manufacturing Co., Ltd. is located in Hubei Province, a central province in China with a well – developed transportation network. The company has a strong R & D ability and can continuously develop new products to meet the market demand.
The company has a strict production process control system, which ensures the quality of JIS and KS flanges from the source of raw materials to the final product delivery.
Features in JIS & KS Flanges:
- New Product Development: The company’s R & D team can develop new types of JIS and KS flanges according to market trends and customer needs.
- Production Process Control: The strict production process control system ensures the stability and reliability of product quality.
- Transportation Convenience: The well – developed transportation network in Hubei Province makes the transportation of products more efficient and cost – effective.
Advantages:
- R & D Advantage: The strong R & D ability enables the company to keep up with the latest technological developments in the industry.
- Quality Control: The strict production process control is the key to ensuring the high – quality of products.
- Transportation Benefit: The convenient transportation conditions help the company to reduce logistics costs and improve customer service efficiency.
10. Anhui Hongyuan Flange Co., Ltd.
Anhui Hongyuan Flange Co., Ltd. is located in Anhui Province. The company has a good reputation in the local market and is gradually expanding its influence in the international market. It has a professional sales team and a good after – sales service system.
The company focuses on the production of medium – and high – end JIS and KS flanges, using high – quality raw materials and advanced manufacturing technology.
Features in JIS & KS Flanges:
- Medium – and High – end Products: The company’s products target the medium – and high – end market, with high – performance and high – quality characteristics.
- Sales and After – sales Service: The professional sales team can provide customers with accurate product information, and the good after – sales service system ensures customers’ satisfaction.
- Raw Material Quality: The use of high – quality raw materials is the basis for producing high – quality flanges.
Advantages:
- Market Reputation: The good local market reputation helps the company to build trust with customers and expand its business.
- Service – oriented: The emphasis on sales and after – sales service helps to establish long – term relationships with customers.
- Product Quality Foundation: The use of high – quality raw materials ensures the high – end nature of products.
BW Pipe Fittings In conclusion, these 10 leading JIS & KS flanges factories in China in 2026 have their own unique features and advantages. They are all playing important roles in the production and supply of JIS and KS flanges, not only meeting the domestic market demand but also making contributions to the international market.
