Precision steel flange product close-up
Industrial flanges on oil and gas pipelines
CNC precision machining of steel flange
International visitors touring flange factory
Flange export shipping and packaging
International trade exhibition flange display

BORWEX

Precision Flange Solutions for Global Industry

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About Us

Jining Boswe Industry Technology Co., Ltd

BOSWE INDUSTRY specializes in design, production and supply of precision flanges for global industries, with brand of BORWEX, which is equipped with modern forging lines, CNC machining centers and high-speed drilling equipment, enabling us to efficiently handle large-volume orders as well as meet diverse custom specification requirements.

Every BORWEX flange undergoes a rigorously controlled 12-step production process to ensure dimensional accuracy, structural integrity and compliance with international standards.

The BORWEX flange production process starts with cutting of certified raw materials, followed by material feeding and descaling, before the blanks are transferred to the forging station. During forging and forming, precise pressure and temperature control is applied to achieve specified mechanical properties. The ring rolling process is adopted for flanges to guarantee uniform grain structure across the cross-section. After forming, workpieces go through shaping, CNC machining and high-speed CNC drilling in sequence to satisfy stringent dimensional tolerance requirements.

Each production batch can be traced back to its original material certificate. Finished products are inspected, marked and professionally packaged to ensure safe transportation via international ocean shipment.

BORWEX precision flange machining workshop

Our Core Values

Benevolence

Respect partners, pursue long-term win-win cooperation

Righteousness

Uphold business ethics, refuse cutting corners and improper profits

Propriety

Respect contracts and business etiquette, observe agreed rules

Wisdom

Keep improving technology & expertise, provide professional solutions

Trustworthiness

Honor every commitment, deliver as promised

Our Range

Our Flange Products

We manufacture a comprehensive range of industrial flanges to meet diverse project requirements across global markets.

ASME Flange

ASME Flange

American standard flanges including ASME B16.5 and B16.47, widely used in oil & gas, petrochemical and power industries across Americas and Middle East.

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EN Flange

EN Flange

European standard EN1092-1 flanges, meeting strict EU requirements for energy, chemical and industrial sectors.

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GB/T Flange

GB/T Flange

Chinese national standard flanges, cost-effective solutions for domestic and international projects.

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HG/T Flange

HG/T Flange

Chemical industry standard flanges, specially designed for corrosive and high-purity applications.

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JIS Flange

JIS Flange

Japanese Industrial Standard flanges, meeting high quality requirements for manufacturing and energy sectors.

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KS Flange

KS Flange

Korean Standard flanges, providing stable quality for manufacturing and energy industries.

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How We Make It

Manufacturing Process

From raw material to export-ready product — complete manufacturing control at every step.

Raw Material Cutting
01

Raw Material Cutting

Material Feeding
02

Material Feeding

Descaling
03

Descaling

Forging
04

Forging

Ring Rolling Forming
05

Ring Rolling Forming

Shaping
06

Shaping

Heat Treatment
07

Heat Treatment

CNC Rough & Finish Machining
08

CNC Rough & Finish Machining

High-Speed CNC Drilling
09

High-Speed CNC Drilling

Inspection & Testing
10

Inspection & Testing

Marking
11

Marking

Export Packaging
12

Export Packaging

Where We Serve

Industries We Serve

Our flanges are trusted in critical applications across six major industrial sectors worldwide.

Oil & Gas

Oil & Gas

Flanges for upstream, midstream and downstream operations

Petrochemical

Petrochemical

Critical connections in chemical processing plants

Power Generation

Power Generation

High-pressure flanges for thermal and nuclear power

Water Treatment

Water Treatment

Corrosion-resistant flanges for water infrastructure

Shipbuilding

Shipbuilding

Marine-grade flanges for naval and commercial vessels

Machinery

Machinery

Precision flanges for industrial equipment and systems

Frequently Asked Questions

Find answers to common questions about our flange products and services

A: We offer flanges to ASME B16.5, EN 1092-1, HG/T, GOST 33259, JIS B2220 and KS B1503.

A: Carbon steel (A105, Q235, Q355), stainless steel (304, 316L, F321), alloy steel (F11, F22), duplex steel and special nickel alloys.

A: Class 150, 300, 400, 600, 900, 1500, 2500. DN6, DN10, DN15, DN20, DN25, DN32, DN40, DN50, DN65, DN80, DN100, DN125, DN150, DN200, DN250, DN300, DN350, DN400, DN450, DN500, DN600. Big sizes are available.

A: Yes, we can supply these test reports according to clients' request.

A: Yes, we can provide traceability records according to projects needs.

A: Yes. Standard markings including material grade, heat number, size, pressure class and standard code can be stamped on each flange.

A: Yes, small orders, sample orders are available.

A: Yes, besides flange, we also make pipe elbows, tees, reducers, and caps.

A: Our factory is with 20 years experience in casting and forging.

A: Of course. Welcome all partners from the world to visit our factory in any time.

Get In Touch

Contact Us

Ready to discuss your flange requirements? Reach out to our team for quotes, technical support, or partnership inquiries.

Jining BOSWE Industry Technology Co., Ltd

Address

No.16, Shengkang Road, Sishui County, Jining City, Shandong Province, China

Contact

Tina Chen, Global Marketing Director

BORWEX Global Reach - Trusted Worldwide