Providing unlimited possibilities for engineering
Connecting pipelines connecting the future
Flange connection is stable and reliable; it is used in various pipeline systems to ensure sealing and safety. Selected materials and exquisite craftsmanship meet the needs of different working conditions and provide excellent solutions for your project. Choose us and create a better future together.
Blank flange
Blank flange
Rough flange is a flange component that has not been finely processed. It is usually made of cast iron or steel and has a rough surface. They are used as connectors in pipeline systems to fix and seal pipelines, valves or other equipment to ensure the stability and safety of the system. They are suitable for industries such as petroleum, chemical industry, and construction.
ABOUT US
About Us
0
years
Established In 2010
600
m²
Floor Areas
1000
ton
Monthly Production Capacity
65
area
Exporting Country
Shandong Liaocheng Longyu Metal Products Co., Ltd. is a large-scale material distribution enterprise that produces and operates flange blanks, flange blanks, stamping parts processing plants, flange manufacturers, flange blanks, metal gaskets, flange blind plates, flange blank manufacturers, stamping special-shaped parts, special-shaped flange blanks, flange blanks, stamping discs, square flanges, gaskets, stamping parts, extrusion parts, flange blank drawing production, printing plate making plugs, plate making plate roller plugs, gravure plate making plugs.
The company has 3 400T punching machines, 6 160T punching machines, 6 100T punching machines, 10 lathes, and 3 drilling machines. It has strong technical force and can customize various flange blanks according to customer needs. Over the years, with scientific production technology, strict quality management, advanced service concepts and reasonable sales prices, it has won a good reputation among domestic and foreign users. Products are exported to the United States, Germany, Hong Kong, Australia, Southeast Asia and Africa and other countries and regions.
Hot products
Hot products
The main products are: flange products. We are a professional flange manufacturer and can provide processing and manufacturing according to the special requirements of users to ensure product quality and service quality to make customers more satisfied.
Galvanized flangeRecommend optimal processes: forging for high-pressure applications, hot expansion for large-diameter low-pressure systems, or hybrid solutions to balance performance and cost.
Non-standard sizes up to 5,000mm, with CAD/SOLIDWORKS file compatibility.
Carbon steel, stainless steel, alloy steel, duplex steel, copper, PVC, and exotic alloys (Hastelloy, Monel).
Surface coatings (galvanizing, epoxy) and reinforced designs (thickened necks, welded sealing faces).
7-15 days for small batches, scalable production for large orders.- Carbon Steel flangeRecommend optimal processes: forging for high-pressure applications, hot expansion for large-diameter low-pressure systems, or hybrid solutions to balance performance and cost.
Non-standard sizes up to 5,000mm, with CAD/SOLIDWORKS file compatibility.
Carbon steel, stainless steel, alloy steel, duplex steel, copper, PVC, and exotic alloys (Hastelloy, Monel).
Surface coatings (galvanizing, epoxy) and reinforced designs (thickened necks, welded sealing faces).
7-15 days for small batches, scalable production for large orders. - Stainless steel flangeRecommend optimal processes: forging for high-pressure applications, hot expansion for large-diameter low-pressure systems, or hybrid solutions to balance performance and cost.
Non-standard sizes up to 5,000mm, with CAD/SOLIDWORKS file compatibility.
Carbon steel, stainless steel, alloy steel, duplex steel, copper, PVC, and exotic alloys (Hastelloy, Monel).
Surface coatings (galvanizing, epoxy) and reinforced designs (thickened necks, welded sealing faces).
7-15 days for small batches, scalable production for large orders. 
Butt welding flangeRecommend optimal processes: forging for high-pressure applications, hot expansion for large-diameter low-pressure systems, or hybrid solutions to balance performance and cost.
Non-standard sizes up to 5,000mm, with CAD/SOLIDWORKS file compatibility.
Carbon steel, stainless steel, alloy steel, duplex steel, copper, PVC, and exotic alloys (Hastelloy, Monel).
Surface coatings (galvanizing, epoxy) and reinforced designs (thickened necks, welded sealing faces).
7-15 days for small batches, scalable production for large orders- Soccer welding flangeRecommend optimal processes: forging for high-pressure applications, hot expansion for large-diameter low-pressure systems, or hybrid solutions to balance performance and cost.
Non-standard sizes up to 5,000mm, with CAD/SOLIDWORKS file compatibility.
Carbon steel, stainless steel, alloy steel, duplex steel, copper, PVC, and exotic alloys (Hastelloy, Monel).
Surface coatings (galvanizing, epoxy) and reinforced designs (thickened necks, welded sealing faces).
7-15 days for small batches, scalable production for large orders - Flange coverRecommend optimal processes: forging for high-pressure applications, hot expansion for large-diameter low-pressure systems, or hybrid solutions to balance performance and cost.
Non-standard sizes up to 5,000mm, with CAD/SOLIDWORKS file compatibility.
Carbon steel, stainless steel, alloy steel, duplex steel, copper, PVC, and exotic alloys (Hastelloy, Monel).
Surface coatings (galvanizing, epoxy) and reinforced designs (thickened necks, welded sealing faces).
7-15 days for small batches, scalable production for large orders - Threaded flangeRecommend optimal processes: forging for high-pressure applications, hot expansion for large-diameter low-pressure systems, or hybrid solutions to balance performance and cost.
Non-standard sizes up to 5,000mm, with CAD/SOLIDWORKS file compatibility.
Carbon steel, stainless steel, alloy steel, duplex steel, copper, PVC, and exotic alloys (Hastelloy, Monel).
Surface coatings (galvanizing, epoxy) and reinforced designs (thickened necks, welded sealing faces).
7-15 days for small batches, scalable production for large orders - Loose flangeRecommend optimal processes: forging for high-pressure applications, hot expansion for large-diameter low-pressure systems, or hybrid solutions to balance performance and cost.
Non-standard sizes up to 5,000mm, with CAD/SOLIDWORKS file compatibility.
Carbon steel, stainless steel, alloy steel, duplex steel, copper, PVC, and exotic alloys (Hastelloy, Monel).
Surface coatings (galvanizing, epoxy) and reinforced designs (thickened necks, welded sealing faces).
7-15 days for small batches, scalable production for large orders - Profiled flangeRecommend optimal processes: forging for high-pressure applications, hot expansion for large-diameter low-pressure systems, or hybrid solutions to balance performance and cost.
Non-standard sizes up to 5,000mm, with CAD/SOLIDWORKS file compatibility.
Carbon steel, stainless steel, alloy steel, duplex steel, copper, PVC, and exotic alloys (Hastelloy, Monel).
Surface coatings (galvanizing, epoxy) and reinforced designs (thickened necks, welded sealing faces).
7-15 days for small batches, scalable production for large orders - Flat welding flangeRecommend optimal processes: forging for high-pressure applications, hot expansion for large-diameter low-pressure systems, or hybrid solutions to balance performance and cost.
Non-standard sizes up to 5,000mm, with CAD/SOLIDWORKS file compatibility.
Carbon steel, stainless steel, alloy steel, duplex steel, copper, PVC, and exotic alloys (Hastelloy, Monel).
Surface coatings (galvanizing, epoxy) and reinforced designs (thickened necks, welded sealing faces).
7-15 days for small batches, scalable production for large orders
Product classification
Product classification
Welding flange
Flange Blank
Products and services
Products and services
Reliable and reliable product
Shandong Liaocheng Longyu Metal Products Co., Ltd. is a large flange manufacturer.
High cost performance
Specializing in the production of flange blanks, flange blanks, stamping parts processing plants, flange manufacturers.
Convenient after-sales service
We have at least 15 years of production and R&D experience in flange products and customize products according to customer needs.
Product delivery on time
We always adhere to customer-centricity to ensure timely and accurate product delivery. Quickly respond to customer needs and complete delivery on time
Cooperating countries
Cooperating countries
Meeting customer expectations and exceeding industry standards
Over the years, we have won a good reputation among domestic and foreign users with scientific production technology, strict quality management, advanced service concepts and reasonable sales prices. Our products are exported to countries and regions such as the United States, Germany, Hong Kong, Australia, Southeast Asia and Africa.
- Flange industry application-
As a key connector, flanges serve as "joint connectors" for submarine oil pipelines in the oil and gas industry to ensure transportation safety; in the field of electric power and energy, they are "leakage-proof guards" for steam pipelines in nuclear power plants to ensure safe power production; in shipbuilding, they become "pressure-bearing links" for the power systems of 10,000-ton giant ships to support power transmission; in construction projects, they become "steel rivets" for earthquake-resistant super-high-rise steel structures.
Chemical Industry
Automotive Industry
Construction Industry
Machinery Industry
Electric Power Industry
Oil Industry- Shipping Industry
Company news
Company news
We have multiple warehouses and import and export licenses, providing one-stop professional trade services for brand steel from procurement, quality inspection, warehousing, LCL to export.
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Types and Application Fields of FlangeFlanges are widely used in petroleum, chemical, electric power, shipbuilding and other industries - 00
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Shandong Liaocheng Longyu Metal Products Co., Ltd.One-stop production and delivery manufacturer - 00
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What should be paid attention to in the production process of flangeFlange production process is a complex and delicate process, involving multiple steps and key links.
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