ISO 9001:2015 Certified Manufacturing Exceeding Global Standards
At HERTZ PRECISION INDUSTRIAL CO., LTD, quality is the core foundation of our contract manufacturing services. We fully operate under an ISO 9001:2015 certified Quality Management System, establishing rigorous standardized operating procedures from initial raw material verification to final export shipment.
Our ISO certification reflects our long-term commitment to continuous improvement, strict dimensional precision, comprehensive lot traceability, and total customer satisfaction for industrial buyers across North America, Europe, and Japan.
Official Certificate

Our Four Pillars of Quality Assurance
We integrate advanced inspection technology with ISO-compliant discipline across every stage of production.
Incoming Material Verification
100% verification of raw material lots, mill test certificates (MTR), chemical composition checks, and RoHS/REACH compliance prior to machining release.
In-Process Quality Control
First Article Inspection (FAI) combined with scheduled SPC sampling on multi-axis CNC machines to maintain tight drawing tolerances and surface finishes.
Final CMM Inspection
Comprehensive 3D Coordinate Measuring Machine (CMM) dimensional checks, optical comparator verification, and pre-shipment quality audit documentation.
Traceability & VCI Packaging
Full lot traceability records paired with specialized VCI anti-rust treatment and reinforced export crating for safe, ocean-ready delivery.
Ready to Partner with an ISO Certified Supplier?
Send us your 2D/3D technical drawings and project specifications. Our engineering team will review your requirements and reply with a detailed quotation.