ISO 9001:2015 CERTIFIED (No. 29024010637-03R0S) Shenzhen Factory: ONLINE (2h Rapid DFM Response Guarantee)
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ISO 9001 REGISTERED

ISO 9001:2015 Registered Plant & Gov Certifications

Internationally Audited Quality Management System & Full Regulatory Compliance.

Quality at JYH Prototype is not a marketing claim; it is an internationally certified operating system. Our Shenzhen manufacturing campus is fully ISO 9001:2015 registered by SGS under IAF accreditation. Every process—from raw material receipt to CNC programming, machining, in-process gauging, and final CMM release—follows strict closed-loop quality protocols.

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ISO 9001:2015 Registered (SGS)
Traceable to NIST / NIM Standards
Full Closed-Loop QMS Protocols
Corporate Competencies & Governance

Precision Engineering Built on Transparency

Shenzhen Jinyihe Technology Co., Ltd. operates with total manufacturing clarity, certified quality systems, and complete legal compliance for global Tier-1 OEMs.

Audited Quality System

Regularly audited and recertified by SGS with zero major non-conformances across all machining cells.

Documented Traceability

Every raw billet, cutter, and finished part is linked to a unique lot traveler and mill inspection certificate.

Statistical Process Control

Real-time CPK and PPK tracking on critical features, maintaining process capability indices exceeding 1.33.

Calibration Integrity

All micrometers, pin gauges, and CMM touch probes are calibrated annually against certified metrology standards.

Detailed Corporate Engineering Deep Dives

Inside Shenzhen Jinyihe Precision Manufacturing

Explore how our engineering teams, certified cleanroom facilities, advanced multi-axis CNC machines, and strict quality metrology labs guarantee consistent results.

ARTICLE 01 Inside Our ISO 9001:2015 Quality Management Manual & Procedures
Technical Deep Dive

Inside Our ISO 9001:2015 Quality Management Manual & Procedures

ARTICLE 02 Lot Traceability: How a 2D Barcode Tracks Every Step of Production
Technical Deep Dive

Lot Traceability: How a 2D Barcode Tracks Every Step of Production

ARTICLE 03 Root Cause Analysis: The 8D Corrective Action Process
Technical Deep Dive

Root Cause Analysis: The 8D Corrective Action Process

ARTICLE 04 Calibration Protocols: Ensuring Microns Mean Microns on Every Machine
Technical Deep Dive

Calibration Protocols: Ensuring Microns Mean Microns on Every Machine

Ready to Partner with a Certified Precision Manufacturer?

Whether you need a dedicated plant audit, NDA-protected prototyping, or volume serial manufacturing, our Shenzhen engineering teams are standing by.

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Factory QA & Customer Governance

Frequently Asked Questions

Direct answers to client questions regarding our legal status, factory audits, non-disclosure agreements, and global shipping.

Yes. You can download our official SGS ISO 9001:2015 certificate directly from this page or request an encrypted high-resolution copy.
Our quality system is audited and certified by SGS, accredited under the International Accreditation Forum (IAF).
Yes. We regularly host supplier quality audits from Fortune 500 corporations and provide full access to calibration logs and inspection data.
All raw material mill test reports (MTR), CMM data logs, and traveler history are digitally archived for 7 years.
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