Global Compliance, Anchored by Factory-Direct Quality
At QBH, compliance is more than just a certificate—it is the core of our Quality Management System (QMS). As a wholly-owned manufacturer, we adhere to stringent ISO 9001:2015 standards, maintaining complete control from R&D to final assembly.
Unlike trading companies, we enforce rigorous testing protocols to ensure every borescope meets global standards (CE, FCC, RoHS). This commitment guarantees consistent product performance and risk-free market access for our partners worldwide.
Global Compliance, Anchored by Factory-Direct Quality
At QBH, compliance is more than just a certificate—it is the core of our Quality Management System (QMS). As a wholly-owned manufacturer, we adhere to stringent ISO 9001:2015 standards, maintaining complete control from R&D to final assembly.
Unlike trading companies, we enforce rigorous testing protocols to ensure every borescope meets global standards (CE, FCC, RoHS). This commitment guarantees consistent product performance and risk-free market access for our partners worldwide.
Global Compliance & Quality Trust Center

Validated by the World’s Toughest Auditors: SGS, BSI, and State Authority.
Trust is not built on words; it is built on verification. At QBH, transparency is our core value.
We have invited the world’s leading inspection agencies to physically audit our factory and quality systems. From SGS validating our ‘Design & Manufacture’ capabilities (ISO 9001:2015) to BSI confirming our on-site reality (VerifEye), and the Government recognizing our R&D leadership (High-Tech Enterprise).
Global Compliance & Quality Trust Center

Validated by the World’s Toughest Auditors: SGS, BSI, and State Authority.
Trust is not built on words; it is built on verification. At QBH, transparency is our core value.
We have invited the world’s leading inspection agencies to physically audit our factory and quality systems. From SGS validating our ‘Design & Manufacture’ capabilities (ISO 9001:2015) to BSI confirming our on-site reality (VerifEye), and the Government recognizing our R&D leadership (High-Tech Enterprise).

GS Verified Source: Design & Manufacture (UKAS Accredited)
Don’t settle for a trading company. Our ISO 9001:2015 certification is audited by SGS under the strict standards of UKAS (UK Crown).
Look at the Scope: The certificate explicitly covers ‘The design and manufacture’. This legally validates QBH as an Original Design Manufacturer (ODM). We don’t just assemble; we engineer. This ensures you get factory-direct pricing and direct access to our R&D team for your customizations.

BSI On-Site Verification: Real Factory, Real Capacity
Distance creates doubt, but BSI removes it. We invited BSI (British Standards Institution) to physically inspect our Shenzhen facility.
This ‘VerifEye’ certificate is not just a document; it is proof of existence. It validates our ‘Supplier capabilities and capacity’ on-site. We are not a virtual office or a middleman. We are a fully operational manufacturing entity ready for your production run.

Dual State-Level Recognition: R&D Powerhouse & Niche Champion
QBH stands in the top 1% of manufacturers holding Dual Government Accreditations.
Innovation Authority: The ‘High-Tech Enterprise’ award certifies our relentless R&D capability and patent output. We don’t just assemble; we invent.
Niche Leader: The ‘Specialized & Sophisticated’ award (active through Dec 2027) confirms QBH as a focused leader in the industrial borescope sector.
Partner with the official technology authority, not just a factory.
Transparency Statement: Brand & Legal Entity
Please note that Shenzhen Yonghengfeng Intelligent Device Co., Ltd. (as stated on all certificates) is the Parent Company and Manufacturing Headquarters of QBH.
QBH operates as our dedicated international brand. When you partner with QBH, you are contracting directly with the legal entity ‘Yonghengfeng’, ensuring your orders are protected by our ISO 9001, BSI, and State-Level certifications.
We are Real. We are Compliant. We are Ready.

GS Verified Source: Design & Manufacture (UKAS Accredited)
Don’t settle for a trading company. Our ISO 9001:2015 certification is audited by SGS under the strict standards of UKAS (UK Crown).
Look at the Scope: The certificate explicitly covers ‘The design and manufacture’. This legally validates QBH as an Original Design Manufacturer (ODM). We don’t just assemble; we engineer. This ensures you get factory-direct pricing and direct access to our R&D team for your customizations.

BSI On-Site Verification: Real Factory, Real Capacity
Distance creates doubt, but BSI removes it. We invited BSI (British Standards Institution) to physically inspect our Shenzhen facility.
This ‘VerifEye’ certificate is not just a document; it is proof of existence. It validates our ‘Supplier capabilities and capacity’ on-site. We are not a virtual office or a middleman. We are a fully operational manufacturing entity ready for your production run.

Dual State-Level Recognition: R&D Powerhouse & Niche Champion
QBH stands in the top 1% of manufacturers holding Dual Government Accreditations.
Innovation Authority: The ‘High-Tech Enterprise’ award certifies our relentless R&D capability and patent output. We don’t just assemble; we invent.
Niche Leader: The ‘Specialized & Sophisticated’ award (active through Dec 2027) confirms QBH as a focused leader in the industrial borescope sector.
Partner with the official technology authority, not just a factory.
Transparency Statement: Brand & Legal Entity
Please note that Shenzhen Yonghengfeng Intelligent Device Co., Ltd. (as stated on all certificates) is the Parent Company and Manufacturing Headquarters of QBH.
QBH operates as our dedicated international brand. When you partner with QBH, you are contracting directly with the legal entity ‘Yonghengfeng’, ensuring your orders are protected by our ISO 9001, BSI, and State-Level certifications.
We are Real. We are Compliant. We are Ready.
Zero Legal Risk: Protected by 50+ Core Patents
Sourcing from the Original Inventor means absolute safety for your supply chain.
In a market filled with copycats, Intellectual Property is your only defense.
QBH holds a strong portfolio of 50+ National Utility & Design Patents, covering everything from thermal protection structures to ergonomic designs. By partnering with the patent holder, you eliminate the risk of copyright disputes and ‘patent troll’ lawsuits. Sell with confidence. We own the tech.
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CE
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RoHS
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FCC
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UN38.3
CE Marking: Passport to European Market
The Standard: The CE mark is a mandatory conformity indication for products sold within the European Economic Area (EEA), certifying that goods meet high safety, health, and environmental protection requirements. QBH Assurance: All QBH industrial borescopes have successfully passed EMC (Electromagnetic Compatibility) and LVD (Low Voltage Directive) testing. We ensure your products comply with EU Directives, guaranteeing seamless customs clearance and unrestricted distribution rights across Germany, France, and the entire EU market.
RoHS Compliance: Eco-Friendly & Lead-Free
The Standard: The RoHS directive restricts the use of specific hazardous materials (such as Lead, Mercury, and Cadmium) in electrical and electronic equipment to protect human health and the environment. QBH Assurance: We are committed to sustainable manufacturing. QBH enforces a strict green supply chain policy that is 100% lead-free. This compliance meets the high procurement standards of environmentally conscious enterprises and ensures safe usage for end-users.
FCC Certification: US Market Access & EMC Safety
The Standard: FCC certification is a requirement by the Federal Communications Commission for electronic products manufactured or sold in the United States, ensuring that electromagnetic interference (EMI) is within approved limits. QBH Assurance: Our devices are rigorously tested to generate zero harmful interference to radio communications. This certification serves as your legal passport for the US market, protecting your distribution business from regulatory fines and ensuring full legality for local sales.
UN38.3 Verification: Safe for Global Air/Sea Shipping
A "Forgiving" DOF tuned specifically for tight industrial spaces. Solves the common problem of "overexposed up close, blurry far away." Whether you are inspecting cylinder wall scratches (Close-up) or searching for debris deep inside an AC duct (Distance), the image stays sharp and crisp without the need to constantly readjust the probe position.
Dual-Extreme Verification: Water & Heat Resilience
In this demonstration, we show why the QBH probe is the ultimate all-rounder for industrial inspection. First, the device undergoes an IP67 waterproof demonstration test to verify its oil and water resistance. Simultaneously, we place the entire product in a high-temperature constant-temperature chamber for testing, subjecting the sensor and braided layer to continuous and uniform high temperatures to ensure our product can operate better in various environments.
Zero Legal Risk: Protected by 50+ Core Patents
Sourcing from the Original Inventor means absolute safety for your supply chain.
In a market filled with copycats, Intellectual Property is your only defense.
QBH holds a strong portfolio of 50+ National Utility & Design Patents, covering everything from thermal protection structures to ergonomic designs. By partnering with the patent holder, you eliminate the risk of copyright disputes and ‘patent troll’ lawsuits. Sell with confidence. We own the tech.
-
CE
-
RoHS
-
FCC
-
UN38.3
CE Marking: Passport to European Market
The Standard: The CE mark is a mandatory conformity indication for products sold within the European Economic Area (EEA), certifying that goods meet high safety, health, and environmental protection requirements. QBH Assurance: All QBH industrial borescopes have successfully passed EMC (Electromagnetic Compatibility) and LVD (Low Voltage Directive) testing. We ensure your products comply with EU Directives, guaranteeing seamless customs clearance and unrestricted distribution rights across Germany, France, and the entire EU market.
RoHS Compliance: Eco-Friendly & Lead-Free
The Standard: The RoHS directive restricts the use of specific hazardous materials (such as Lead, Mercury, and Cadmium) in electrical and electronic equipment to protect human health and the environment. QBH Assurance: We are committed to sustainable manufacturing. QBH enforces a strict green supply chain policy that is 100% lead-free. This compliance meets the high procurement standards of environmentally conscious enterprises and ensures safe usage for end-users.
FCC Certification: US Market Access & EMC Safety
The Standard: FCC certification is a requirement by the Federal Communications Commission for electronic products manufactured or sold in the United States, ensuring that electromagnetic interference (EMI) is within approved limits. QBH Assurance: Our devices are rigorously tested to generate zero harmful interference to radio communications. This certification serves as your legal passport for the US market, protecting your distribution business from regulatory fines and ensuring full legality for local sales.
UN38.3 Verification: Safe for Global Air/Sea Shipping
A "Forgiving" DOF tuned specifically for tight industrial spaces. Solves the common problem of "overexposed up close, blurry far away." Whether you are inspecting cylinder wall scratches (Close-up) or searching for debris deep inside an AC duct (Distance), the image stays sharp and crisp without the need to constantly readjust the probe position.
Dual-Extreme Verification: Water & Heat Resilience
In this demonstration, we show why the QBH probe is the ultimate all-rounder for industrial inspection. First, the device undergoes an IP67 waterproof demonstration test to verify its oil and water resistance. Simultaneously, we place the entire product in a high-temperature constant-temperature chamber for testing, subjecting the sensor and braided layer to continuous and uniform high temperatures to ensure our product can operate better in various environments.
Zero Legal Risk: Protected by 50+ Core Patents
Sourcing from the Original Inventor means absolute safety for your supply chain.
In a market filled with copycats, Intellectual Property is your only defense.
QBH holds a strong portfolio of 50+ National Utility & Design Patents, covering everything from thermal protection structures to ergonomic designs. By partnering with the patent holder, you eliminate the risk of copyright disputes and ‘patent troll’ lawsuits. Sell with confidence. We own the tech.
Zero Legal Risk: Protected by 50+ Core Patents
Sourcing from the Original Inventor means absolute safety for your supply chain.
In a market filled with copycats, Intellectual Property is your only defense.
QBH holds a strong portfolio of 50+ National Utility & Design Patents, covering everything from thermal protection structures to ergonomic designs. By partnering with the patent holder, you eliminate the risk of copyright disputes and ‘patent troll’ lawsuits. Sell with confidence. We own the tech.







