Ganyuan Factory boasts over twenty years of experience in manufacturing pressure piping components. Equipped with large vertical lathes, CNC gantry machining centers, specialized drilling and tapping equipment, and a complete set of dimensional, flatness, roughness, and non-destructive testing instruments, the factory ensures strict dimensional tolerances, excellent sealing surface quality, and superior mechanical properties throughout the entire process, from material flaw detection, precision turning, drilling and tapping to sealing surface finishing.
We focus on one-stop precision manufacturing from design to finished product, dedicated to the research and development and production of CNC-machined stainless steel flanges.

High-precision 304 stainless steel flanges Trustworthy CNC machined industrial pipeline sealing connections.
Based on the flange's application conditions, we scientifically select stainless steel materials with different properties, such as 304, 304L, 316, 316L, and 321, and manufacture them through precision CNC turning, milling, drilling, and tapping processes. Stainless steel flanges are renowned for their excellent strength, toughness, corrosion resistance, and achievable mirror-finish sealing surfaces.
CNC machining ensures the flatness, roughness, and perpendicularity of the flange sealing surface to the pipeline axis, enabling it to form a uniform and tight seal with the gasket. This effectively withstands the system design pressure and prevents media leakage, ensuring the long-term safe operation of the entire pipeline system.
We have established a comprehensive quality control system, from material chemical composition and mechanical property verification, process design and non-destructive testing planning, to multi-stage precision machining, online dimensional and geometrical inspection, specialized sealing surface inspection, pressure testing, and final surface treatment and marking.

We are committed to becoming your trusted partner in critical connection components through our deep knowledge of pressure pipelines, professional large-scale stainless steel component machining technology, and a safety-centric quality culture. From standard selection and non-standard design support to sample production, performance testing, and mass production, we provide professional, reliable, and high-performance manufacturing solutions throughout the entire process, providing robust, sealed, and durable stainless steel connections for your high-standard pipeline projects.
We are a manufacturer integrating industry and trade. We have more than 20 years of experience in production technology. We are located in Dongguan City, Guangdong Province, China. We have advanced high-end professional production and processing technology, and are committed to innovative R&D and production. After years of market tempering and exploration, it has high-quality technical management personnel, experienced designers, R&D personnel and a perfect company management system cnc precision.
5-axis CNC workshop
Our factory has a plant area of about 2,000 square meters and masters core processing technologies. It has high-end precision production equipment cnc precision: CNC lathes, 5-axis CNC, 4-axis CNC, stamping equipment, die-casting equipment, etc. 2.5-dimensional detection equipment 

cnc precision surface treatment
For surface treatment, our suppliers have been working with us for many years. They have rich experience and are familiar with all the quality requirements of each other. The quality is stable and more guaranteed. Such as: heat treatment, spray painting, powder coating, blackening, silver/gold plating, electrolytic polishing, nitriding, phosphating, nickel/zinc/chromium/TiCN plating, anodizing, polishing, passivation, sandblasting, galvanizing, heat treatment , hardening, laser marking, etc. according to customer requirements. Aluminum alloy surface oxidation
Packaging Details

Q1: Where can I get product & price information?
A1: Send us an inquiry e-mail, we will contact you once we received your mail.
Q2: How long will I get the sample?
A2: Depends on your specific items, within 3-7 days generally.
Q3: What kinds of information do you need for a quote?
A3: Kindly please provide the product drawings in PDF, if provide in STEP or IGS will be better.
Q4: What are the payment terms?
A4: We accept 50% as a payment deposit, when the goods are prepared, we shoot photos or videos for your check, and then you can pay the balance. For small quantities, we accept Paypal, the commission will be added to the order. For big amounts, T/T is preferred.
Q5: How to deliver the goods?
A5: We deliver the products by courier company.
Q6: Are you a trading company or factory?
A6: We are factory direct with 17 experienced engineers and more than 50 employees as well approximate 3,000m2 workshop area.
Q7: What shall we do if we don't have drawings?
A7: Please send your sample to our factory, then we can copy and provide you better solutions. If send us pictures or drafts with dimensions(Length, Height, Width), CAD or 3D file will be made for you.
Q8: Can we get some samples before mass production?
A8: Absolutely yes.
Q9: Will my drawings be safe after sending them to you?
Q10: Is it possible to know the operation status of my products without visiting your company?
A10: We will offer a detailed production schedule and send weekly reports with digital pictures and videos which show the machining progress.