About JIAJI FORGING - Trusted Forged Flanges Manufacturer

Who We Are

From Wenzhou to the World: The JIAJI Story

Founded in 2010 in Wenzhou, Zhejiang Province — widely recognized as "China's Stainless Steel Forging Capital" — ZHEJIANG JIAJI FORGING INDUSTRY CO., LTD. began with a clear vision: to manufacture industrial forged flanges and fittings that meet the most demanding international standards, at competitive prices, with uncompromising quality.

What started as a specialized forging workshop has grown into a fully integrated manufacturer serving global engineering, procurement, and construction (EPC) firms. Our product portfolio spans 11 flange types across ASME, EN, DIN, and GB standards, plus 9+ forged fitting configurations — all produced under one roof with full process traceability.

We work with carbon steel, stainless steel (304/316/321/347), duplex (2205), super duplex (2507), and nickel alloys (Inconel 625, Hastelloy C276, Monel 400), offering solutions from standard catalog items to fully custom-engineered forgings.

In 2025, we established a dedicated Shanghai Export Office operated by an experienced international trade team, bringing professional English-language service, faster RFQ turnaround, and end-to-end order management to our global clients.

Headquarters

Wenzhou, Zhejiang, China — Manufacturing & Technical Center

Export Office

Shanghai — International Sales, Logistics & Customer Service

JIAJI FORGING Wenzhou Manufacturing Base - Forged Flanges Production Facility

Our Journey

15 Years of Growth, Innovation & Trust

Every milestone represents a step forward in our commitment to quality, technology, and customer service.

2010

Company Founded

JIAJI FORGING established in Wenzhou, Zhejiang — China's stainless steel flange manufacturing hub. Initial production focused on carbon steel and stainless steel forged flanges for domestic industrial clients.

2012

First International Order

Shipped the first export order to Southeast Asia, marking the beginning of JIAJI's global journey. Established relationships with overseas distributors and EPC contractors.

2014

ISO 9001 Certified by TUV SUD

Achieved ISO 9001:2008 quality management certification audited by TUV SUD, one of the world's most respected testing and certification bodies. This milestone formalized our quality-first manufacturing philosophy.

2016

PED-AD2000 / 97/23/EC Certification

Obtained Pressure Equipment Directive certification, unlocking the European market for pressure vessel and pipeline applications. Began supplying major European engineering firms.

2018

Facility Expansion & Capacity Upgrade

Expanded manufacturing facilities with new forging presses, CNC machining centers, and an in-house testing laboratory featuring PMI spectroscopy, ultrasonic testing, and mechanical property analysis equipment.

2020

Global Footprint — 20+ Countries

Despite global supply chain disruptions, JIAJI maintained uninterrupted production and delivery. Expanded client base to 20+ countries across Asia, Europe, Middle East, Africa, and South America. ISO 9001 upgraded to 2015 version.

2023

20+ Proprietary Patents

Reached a milestone of 20+ granted patents covering forging processes, flange design innovations, machining fixtures, and quality inspection methods — reinforcing JIAJI's position as a technology-driven manufacturer.

2025

Shanghai Export Office & Global Brand Launch

Established dedicated international trade team in Shanghai. Launched renewed global brand identity with multi-language support. 30+ countries now trust JIAJI FORGING for critical forged components.

Leadership

Experienced Management Driving Quality & Innovation

Our leadership team combines decades of forging industry expertise with international trade professionalism.

M

General Management

Executive Leadership

Over 20 years of forging industry experience. Drives strategic direction, quality culture, and long-term partnerships with key global accounts.

T

Technical & Engineering

R&D & Production Technology

Led development of 20+ proprietary patents. Oversees forging process design, tooling development, heat treatment optimization, and new material qualification.

Q

Quality Assurance

QC & Certification Management

Manages ISO 9001 and PED compliance systems. Supervises in-house testing lab, material traceability protocols, and third-party inspection coordination (TUV, SGS, BV, Lloyd's).

Manufacturing Power

Integrated Production Under One Roof

From raw material to finished product — every process step is controlled in-house for quality, traceability, and on-time delivery.

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8,000 m²

Production Workshop Area

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5,000+ Tons

Annual Forging Capacity

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30+ Units

CNC & Machining Equipment

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In-House

Testing Laboratory (PMI, UT, MT, PT)

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Raw Material Control

All incoming steel billets are verified by PMI spectroscopy before entering production. Full heat/lot traceability maintained from mill certificate to final product.

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Forging & Heat Treatment

Multiple forging presses with capacity up to 2,500 tons. In-house heat treatment furnaces for annealing, normalizing, quenching & tempering, and solution annealing per ASTM/ASME specifications.

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Precision Machining

30+ CNC lathes and machining centers for flange facing, bolt hole drilling, groove machining, and custom profiling. Capable of tolerances within ±0.05 mm for critical dimensions.

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Quality Inspection

Every shipment includes: dimensional inspection report, PMI material verification, visual inspection, and MTC (EN 10204 3.1). NDT (UT, MT, PT) available upon request and per project specification.

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Documentation & Traceability

Complete documentation package per order: commercial invoice, packing list, MTC 3.1, inspection reports, and certificate of origin. All documents archived for 10+ years.

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Logistics & Packaging

Professional seaworthy packaging — plywood cases, pallets, or crates per client specification. FOB Shanghai/Ningbo, CIF, and DAP terms available. Container optimization to reduce freight costs.

Our Promise

Quality Is Not Inspected — It Is Built In

JIAJI's quality management philosophy extends beyond certificates to every process, every person, and every product.

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Certified Systems

ISO 9001:2015 and PED-AD2000 certified by TUV SUD, with annual surveillance audits ensuring continuous compliance.

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Full Traceability

Every product traceable to its original heat number, mill certificate, and production batch. EN 10204 3.1 MTC standard on all shipments.

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In-Process Control

Quality checks at every stage: incoming material, in-process forging, post heat-treatment, post machining, and final inspection before dispatch.

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Third-Party Ready

Full support for third-party inspection by TUV, SGS, Bureau Veritas, Lloyd's Register, and client-nominated inspectors. No advance notice required.

Quality Policy: "We commit to deliver forged products that consistently meet or exceed customer specifications, international standards, and regulatory requirements — through a culture of continuous improvement, employee empowerment, and technological investment."

Global Reach

Trusted Across 6 Continents

From oil fields in the Middle East to refineries in Europe, JIAJI flanges and fittings perform in the world's most demanding environments.

30+

Countries Served

80%+

Export Revenue Ratio

200+

Active Global Clients

5,000+

Orders Shipped

🌏 Asia Pacific

Key markets: Southeast Asia, South Korea, Australia. Supplying oil & gas EPC projects, shipbuilding, and chemical plants with ASME/EN standard flanges.

🌍 Europe & UK

Key markets: Germany, Italy, UK, Netherlands. PED-compliant flanges for pressure vessels, heat exchangers, and pipeline systems with full 3.1 MTC documentation.

🌎 Middle East & Africa

Key markets: UAE, Saudi Arabia, South Africa, Nigeria. NACE MR0175 sour service flanges, large-diameter flanges for oil & gas infrastructure projects.

🌎 North America

Key markets: USA, Canada, Mexico. ASME B16.5/B16.47 flanges in carbon steel, stainless, and duplex for refineries, chemical plants, and power generation.

🌎 South America

Key markets: Brazil, Chile, Argentina. Flanges and fittings for mining, oil & gas, and water treatment applications with Spanish-language documentation support.

🌎 CIS & Central Asia

Key markets: Russia, Kazakhstan, Uzbekistan. GOST-compatible flanges and custom-specification forgings with Russian-language technical support available.

Innovation

20+ Proprietary Patents — Technology-Driven Manufacturing

Innovation is embedded in our DNA. Our patents span forging processes, flange design, machining fixtures, and quality testing — each one solving real industrial challenges.

Patent #1

High-precision flange forging die with automatic centering mechanism for reduced material waste and improved dimensional accuracy.

Patent #2

Multi-station CNC machining fixture enabling single-setup processing of flange faces, bolt holes, and grooves — reducing cycle time by 35%.

Patent #3

Automated heat treatment temperature profiling system with real-time data logging for complete process traceability and ASME compliance.

Patent #4

Ultrasonic testing jig for large-diameter flanges enabling full volumetric inspection without repositioning — reducing inspection time by 50%.

Patent #5

Duplex stainless steel forging process with controlled cooling rate to prevent sigma phase precipitation and ensure optimal corrosion resistance.

Patent #6

Modular flange marking and traceability system integrating laser engraving with QR-code based digital documentation retrieval.

These represent a selection from our full portfolio of 20+ granted patents. View our certifications →

Vision & Mission

Our Core Values Drive Everything We Do

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Our Vision

To become the globally recognized benchmark brand for forged flange and fluid connection system solutions — the name that engineering firms trust and procurement teams recommend without hesitation.

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Our Mission

To deliver products that earn lasting trust, provide service that builds multi-decade partnerships, and continuously invest in forging technology and people to stay ahead of industry demands.

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Our Spirit

"Service is the marketing." Professional equipment, exceptional team, strict attention to detail, and passionate, proactive attitude toward every order and inquiry — regardless of size.

JIAJI FORGING Shanghai Export Office - Tokotech International Trade Team

Global Trade

Shanghai Export Team — Your Dedicated Trade Partner

In 2025, JIAJI FORGING established a dedicated international trade office in Shanghai, operated in partnership with Tokotech Team — experienced foreign trade professionals with deep domain knowledge in B2B industrial equipment and forged products.

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Multilingual Communication

All inquiries, technical discussions, negotiations, and documentation handled in professional English, with Spanish and Russian language support available. Clear, accurate, and prompt.

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4-Hour Response Guarantee

Your inquiry will receive a substantive response within 4 hours during business hours (GMT+8). Urgent and after-hours requests handled with priority escalation.

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Single Point of Contact

From pre-sales technical consultation through production monitoring, quality inspection coordination, and logistics management — one dedicated account manager from start to finish.

Contact Our Export Team →

Ready to Partner with a Trusted Manufacturer?

ISO 9001 & PED certified. 15+ years of forging expertise. 30+ countries served. Get in touch for product inquiries, technical consultation, or a project-specific quotation.

Request a Quote View Certifications