Material Traceability
Certified stainless steel materials with full heat numbers and mill test reports.
Precision Parts
for the Systems
That Cannot Stop.
Stainless steel piping solutions for industrial processing, beverage and food systems, and data center liquid cooling.
20+ Years
Experience
Experience
ASME / PED
Certified
Certified
Wenzhou
Manufacturing Base
Manufacturing Base
Where JNDIA works
Built for Demanding Industries.
Our piping components perform in industrial, hygienic, and thermal systems where reliability, corrosion resistance, and specification compliance are non-negotiable.
Industrial
Stainless steel piping solutions for industrial processing, chemical, energy, and process systems, with reliable quality and customized manufacturing.
- Process piping for chemical and energy systems
- Reliable quality with full material traceability
- Customized manufacturing for project specifications
- Corrosion-resistant stainless steel grades
Explore our product range
Find Your Flange
Browse our full flange range to find the right product for your application.
What we supply
Supplying stainless steel flanges and welding fittings—
both ASME-compliant and non-standard.
We provide stainless steel flanges and pipe fittings for the industrial, process, chemical, pharmaceutical, food, and liquid cooling industries.
- Materials
- AISI 304L and 316L stainless steel, with welded and seamless options.
- Flanges
- Blind, lap joint, welding neck, slip-on, and threaded flanges.
- Fittings
- 45° and 90° elbows, end caps, concentric and eccentric reducers, equal and reducing tees, crosses, and stub ends.
- Size & class
- 1/2" to 24", Class 150 and 300.
- Faces
- BL/RF, WN/RF, LJ, SO/RF, and THRD/RF.
- Schedules
- 10S, 40S, and 80S.
- Standards
- ASTM A182, ASTM A403, and ASME B16.5 / ASME B16.9.
Frequently Asked Questions
We supply stainless steel flanges and pipe fittings in AISI 304L and 316L, suitable for demanding industrial, chemical, food, pharmaceutical, and liquid cooling applications.
Yes. We can supply both welded and seamless stainless steel pipe fittings, depending on the size, application, material, and customer requirements.
Yes. We support custom sizes, dimensions, specifications, and drawings. Customers can send us drawings or detailed requirements, and our team can provide a suitable solution and quotation.
Yes. We can provide relevant material certificates, inspection documents, dimensional inspection, and surface finish documentation according to project and customer requirements.
From specification to shipment
A Proven Process You Can Count On.
Select
Find the right flange type, material, size, and pressure class for your application.
Verify
Our team reviews drawings and requirements to confirm full specification compliance.
Manufacture
Precision machining and controlled processes deliver consistent, traceable quality.
Deliver
Careful packaging and global logistics keep every shipment on schedule.
Core flange range
Find the Right Flange
Category · pipe fitting
Precision Machining
Advanced CNC equipment delivers consistent dimensions and surface finish.
Quality Documentation
Dimensional reports, MTRs, pressure tests, and certificates for every order.
Resources
