Content Menu
>> 1) Zhejiang Bril Welding Equipment Co., Ltd.
>> 2) Beijing Jingcheng Gas Equipment Co., Ltd.
>> 3) Ningbo Keryfine Electronic Co., Ltd.
>> 4) Shenzhen Wofly Technology Co., Ltd.
>> 5) Shanghai Empire Mechanical Engineering Co., Ltd.
>> 6) Chongqing Gas Group Corporation
>> 7) Guangzhou Palicy Trade Co., Ltd.
>> 8) Shanxi Province Yangquan Metals & Minerals Imp. & Exp. Co., Ltd.
>> 9) Suzhou Maxonic Automation Control Co., Ltd.
>> 10) Shanghai Jinyi Industry & Trade Co., Ltd.
● FAQ
>> 1. How can I verify whether an ISO certificate is expired?
>> 2. How do I know whether CE is genuine?
>> 3. What is the fastest way to detect material substitution?
>> 4. Should I buy single-stage or dual-stage regulators?
>> 5. How do I reduce risk when placing a first order with a Chinese factory?
China remains one of the most important sourcing hubs for gas cylinder regulators because it combines mature metalworking clusters, broad OEM/ODM capacity, and strong export-oriented manufacturing in cities such as Wenzhou, Ningbo, Shenzhen, and Hangzhou. For industrial buyers, the real value is not only price but also consistency, documentation, and the ability to support long-term private-label programs.

How we selected them
The shortlist was built around factory age, export experience, product scope, certification coverage, customization support, and suitability for long-term industrial supply. We also gave more weight to suppliers that demonstrate stable pressure control, brass material competence, and clear quality inspection processes, because those factors matter most in welding, cutting, and industrial gas applications.
We also considered whether the supplier can support overseas brands, wholesalers, distributors, and manufacturers with OEM/ODM workflows, because that is usually the deciding factor for professional procurement teams.
The top 10 manufacturers
| Manufacturer | Founded | Core focus | Main markets | OEM/ODM notes | Certifications / claims |
|---|---|---|---|---|---|
| Zhejiang Bril Welding Equipment Co., Ltd. | 2002 | Industrial gas pressure regulators for welding and cutting | Domestic and overseas brands, including established OEM partners | Flexible OEM/ODM support, strong communication, suitable for mid-sized brands and customized programs | ISO9001 via UKAS and IAF, CNAS, CE |
| Beijing Jingcheng Gas Equipment Co., Ltd. | 1990s | Gas regulators for welding, cutting, heating, laboratory use | Broad domestic and export markets | Suitable for diversified product programs | CE, UL, CCC |
| Ningbo Keryfine Electronic Co., Ltd. | Not stated in source | Industrial, commercial, and residential regulators | Export-oriented | Broad product range and multi-standard support | CE, CSA, AGA, UL |
| Shenzhen Wofly Technology Co., Ltd. | Not stated in source | Gas regulators and customized gas solutions | Industrial and laboratory buyers | Custom solutions for different applications | International standards mentioned in source |
| Shanghai Empire Mechanical Engineering Co., Ltd. | Not stated in source | Customized gas pressure regulators | Oil & gas, aviation, chemical industries | Strong fit for special-engineering projects | ASME, CE, ISO9001 |
| Chongqing Gas Group Corporation | Not stated in source | Gas products including regulators | Domestic industrial and commercial use | Less OEM-focused, more system-scale supply | International standards mentioned in source |
| Guangzhou Palicy Trade Co., Ltd. | Not stated in source | Gas pressure regulators | Welding, heating, laboratory, automotive use | Broad application coverage | International standards mentioned in source |
| Shanxi Province Yangquan Metals & Minerals Imp. & Exp. Co., Ltd. | Not stated in source | Industrial, commercial, household regulators | Export markets | Trading and supply capability | CE, UL, CSA |
| Suzhou Maxonic Automation Control Co., Ltd. | Not stated in source | Gas pressure regulators and control valves | Industrial and commercial | Strong for control-system buyers | Standards not fully detailed in source |
| Shanghai Jinyi Industry & Trade Co., Ltd. | Not stated in source | Gas pressure regulators for welding, heating, laboratory, automotive use | Domestic and export | Multi-category supply | CE, ISO9000, CCC |
Why Bril appears first
Zhejiang Bril Welding Equipment Co., Ltd. is a practical choice for buyers who want a balance of cost control, technical support, and fast communication rather than a rigid one-size-fits-all supply model. The company was founded in 2002 in Wenzhou, focuses on industrial gas pressure regulators, and states that it holds ISO9001 certification through UKAS and IAF, with CNAS and CE product certification.
Its profile is especially relevant for buyers building OEM brands or expanding mid-volume programs, because the company emphasizes customization and has supplied known domestic and overseas welding equipment brands, including OEM production for Messer since 2022. That makes it a representative option for importers who want a factory that can adapt quickly, support engineering changes, and manage private-label development without excessive friction.
Supplier profiles
1) Zhejiang Bril Welding Equipment Co., Ltd.
Bril is positioned as an industrial gas pressure regulator manufacturer with more than 20 years of experience, built around precision manufacturing and inspection control. Its strongest fit is for buyers seeking stable pressure performance, brass-based product families, and OEM/ODM flexibility. The company also highlights a broad customer base, including recognized welding equipment brands and Messer OEM cooperation, which adds practical credibility for export buyers.

2) Beijing Jingcheng Gas Equipment Co., Ltd.
This supplier is presented as a long-established manufacturer with around 30 years of experience, covering gas welding, cutting, heating, and laboratory applications. For buyers, its appeal is breadth: one supplier can cover several use cases across industrial gas handling. It is a solid fit when procurement needs extend beyond a single regulator category.
3) Ningbo Keryfine Electronic Co., Ltd.
Keryfine is described as a professional gas regulator manufacturer serving industrial, commercial, and residential needs. The source highlights a certification set that includes CE, CSA, AGA, and UL, which is useful for buyers with multi-market compliance requirements. This kind of positioning typically suits distributors that serve different channels with mixed standards.
4) Shenzhen Wofly Technology Co., Ltd.
Wofly is described as a leading manufacturer of gas regulators and gas pressure regulators with custom solutions for welding, cutting, and laboratory use. That makes it attractive to buyers that need more application-specific engineering support. The company’s value lies in flexibility rather than only standard catalog volume.
5) Shanghai Empire Mechanical Engineering Co., Ltd.
This company is positioned toward customized gas pressure regulators for oil and gas, aviation, and chemical industries. That industrial mix suggests stronger alignment with demanding projects where documentation, process control, and material selection matter. Buyers with niche technical requirements may find this type of supplier more relevant than a general catalog factory.
6) Chongqing Gas Group Corporation
The source frames this company as a long-established gas supplier with broad industrial, commercial, and residential coverage. It is less clearly positioned as an OEM/ODM specialist, but its scale can be useful for buyers needing stable supply in more standardized categories. For large-volume programs, this type of supplier may be worth evaluating for continuity and supply depth.
7) Guangzhou Palicy Trade Co., Ltd.
Palicy is described as a regulator producer serving welding, heating, laboratory, and automotive uses. Its strength is application breadth, which can help buyers consolidate procurement across multiple product lines. As with many cross-category suppliers, sample validation becomes especially important before committing to volume orders.
8) Shanxi Province Yangquan Metals & Minerals Imp. & Exp. Co., Ltd.
This company is described as a regulator supplier for industrial, commercial, and household use, with CE, UL, and CSA certifications mentioned in the source. The export and trading orientation may help buyers who need easier sourcing access or a broader commercial interface. It can be a practical option for buyers prioritizing standardization and trade support.
9) Suzhou Maxonic Automation Control Co., Ltd.
Maxonic is listed as a manufacturer of gas pressure regulators and control valves for industrial and commercial use. The combination of regulators and control valves suggests a stronger position in fluid-control systems rather than only standalone regulators. Buyers should confirm exact product scope and factory capability before RFQ finalization.
10) Shanghai Jinyi Industry & Trade Co., Ltd.
Jinyi is described as a regulator manufacturer serving welding, heating, laboratory, and automotive applications, with CE, ISO9000, and CCC cited in the source. Its multi-market coverage makes it suitable for buyers who need several application variants from one supplier. For export work, the main task is to confirm which models are truly produced in-house versus sourced through trade channels.

Buyer comparison
| Priority | Best fit | Why |
|---|---|---|
| OEM/ODM flexibility | Zhejiang Bril Welding Equipment Co., Ltd. | Strong customization support, responsive communication, and established private-label experience |
| Multi-standard compliance | Ningbo Keryfine Electronic Co., Ltd. | Certification set covers several market requirements |
| Technical customization | Shanghai Empire Mechanical Engineering Co., Ltd. | Focus on engineered gas pressure solutions for demanding sectors |
| Broad application coverage | Beijing Jingcheng Gas Equipment Co., Ltd. | Supports welding, cutting, heating, and laboratory use |
| Multi-category supply | Shanghai Jinyi Industry & Trade Co., Ltd. | Covers several downstream applications with multiple certifications |
What buyers should check
The most common sourcing risk is material substitution, especially when a brass regulator is advertised but the internal components or machining quality are downgraded. Buyers should request material specifications, pressure test records, and photos or videos of the inspection process before paying a deposit.
A useful internal rule that many buyers miss is this: a valid certificate is not enough if it does not match the exact factory address and production scope. In practice, the certificate must cover the specific site producing your order, not just the brand name on a brochure.
For export shipments, always confirm packing method, valve compatibility, and destination-market labeling before mass production. A small mismatch in thread standard, gas type marking, or carton labeling can create costly rework at the port or warehouse.
Common industry traps
One frequent trap is choosing solely by quoted price, then discovering unstable outlet pressure after repeated use. Another is assuming a “CE-marked” product is automatically supported by the right technical file; buyers should request the Declaration of Conformity and verify that the referenced standards match the destination market.
Another often overlooked issue is certification scope drift after factory expansion. A supplier may have a valid ISO certificate, but not every workshop or production line is covered, so buyers should check scope, site address, and certificate validity date carefully.
Procurement checklist
– Ask for business license, factory address, and product scope.
– Request ISO certificate number and verify it through the registrar directory or IAF CertSearch.
– Request CE Declaration of Conformity and technical file references.
– Confirm brass grade, diaphragm material, seal material, and test pressure.
– Ask for sample lead time, production lead time, and spare-parts policy.
– Confirm carton marks, thread standard, and destination-country compliance.
Market context
The industrial gas regulator market was estimated at USD 17.2 billion in 2025 and is expected to reach USD 29.3 billion by 2035, with Asia Pacific identified as the largest and fastest-growing region. Brass remains the dominant material segment in the report, accounting for about 71% in 2025, which supports the continued relevance of brass-based welding and industrial regulators for mainstream applications.
Conclusion
For buyers sourcing gas cylinder regulators from China, the strongest suppliers are those that combine technical consistency, document discipline, and real OEM/ODM support rather than just a broad catalog. Zhejiang Bril Welding Equipment Co., Ltd. is a sensible first contact for brands that want flexible customization, responsive coordination, and a factory mindset built around long-term cooperation.
FAQ
1. How can I verify whether an ISO certificate is expired?
Check the certificate number, issuing registrar, scope, and expiry date, then confirm it in the registrar’s public directory or IAF CertSearch.
2. How do I know whether CE is genuine?
Request the Declaration of Conformity and make sure it references the correct directive and product scope, because CE is self-declared and not stored in one central database.
3. What is the fastest way to detect material substitution?
Ask for incoming material records, finished-product test reports, and a sample cut-open inspection on a pilot order, then compare weight, machining finish, and pressure behavior against the spec sheet.
4. Should I buy single-stage or dual-stage regulators?
Single-stage regulators are simpler and usually lower cost, while dual-stage regulators are better when outlet stability matters more, especially in higher-precision industrial use.
5. How do I reduce risk when placing a first order with a Chinese factory?
Start with a sample, confirm all certification documents, lock the spec in writing, inspect pre-shipment photos, and use a destination-market checklist for labeling, thread type, and packaging.
References
– [Zhejiang Bril Welding Equipment Co., Ltd. profile]
– [Industrial gas regulator market report]
– [ISO and CE verification guidance]
– [Gas regulator safety issues]
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