About Us
ABOUT US Dongguan Jian’qiao Hardware Products Co., Ltd, founded in 2015 and located in Dongguan City, Guangdong Province. It covers an area of 6,600 square meters, is a modern factory specialized in high precision machining parts, widely used in automotive, medical devices, electronic devices,AI robots, and other fields. We have a complete in-house system for design, manufacturing, testing, pressing and assembly. With years’ experiences.Our rigorous QA/QC team of 15 inspectors guarantees superior quality through comprehensive testing procedures. Offering extensive customization options such as Material, Surface, Packaging, Color, and Size Customization
Jian’qiao is the C N C Machining manufacturer in China. Offering quality product to global customers. Our products were sold to over 20 countries such as Japan, Canada, United States, Europe. Our service is highly appreciated by our clients. We have advanced C N C machining Centers, C N C milling machines, C N C multi axis turn-milling, C N C turning lathes, Sheet metal working machines, Welding equipment and different kinds of high precision instruments , 3 D-measurement instrument, height gauge, digital calipers, inspection gauges. your demand will be fully followed according to you drawings or samples.
We stick to the principle of "quality first, service first, continuous improvement and innovation to meet the customers management and "zero defect, zero complaints" as the quality objective. To perfect our service, we provide the products with good quality at the reasonable price. We are looking forward to working with you for mutual success, your inquiry and visit is warmly welcomed.
CORPORATE CULTURE
MANUFACTURINGSTRENGTH 
R&D Light customization,
Sample processing,
Graphic processing,
Customized on demand
QUALITY CONTROL 
ISO 9001:2015 certified
Compliant with IATF 16949 requirements for automotive parts (if applicable)
Can support VDA 6.3 process audits
|
Stage |
Inspection Content |
Key Equipment / Method |
|
IQC (Incoming) |
Material grade, hardness, surface, dimensions |
Spectrometer, hardness tester, calipers |
|
FAI (First Article) |
Critical dimensions, GD&T, surface roughness |
CMM, vision measurement, roughness tester |
|
IPQC (In-process) |
Sampling every 2 hours or per batch – SPC control charts |
Gages, control charts |
|
OQC (Outgoing) |
100% key dimension re-check, full visual inspection |
Custom gages, visual inspection |
CMM (Coordinate Measuring Machine) – Zeiss / Hexagon, accuracy ±0.001mm
Vision measurement system – for complex contours and small precision parts
Roughness tester – Ra, Rz measurement
Hardness tester – Rockwell, Brinell, Vickers
Spectrometer – material composition verification
Height gauge, micrometers, thread gauges – for quick dimensional checks
Leak / air tightness tester – for welded enclosures and hydraulic components
Film thickness gauge – for coating/anodizing thickness
Material certificate (traceable to heat number)
First Article Inspection Report (FAIR) with full dimensional data
Process capability report (CPK / PPK)
Heat treatment process curve & hardness report
NDT reports (X-ray / ultrasonic / dye penetrant – upon request)
Coating adhesion & salt spray test reports
8D report: For any customer complaint, we initiate an 8D process within 48 hours to identify root cause and implement corrective/preventive actions.
Zero defect goal: Continuous improvement through PDCA cycles and regular operator training.
Traceability system: Each batch has a unique lot number traceable to raw material, production machine, operator, and inspection records.
CERTIFICATIONS 
