Sample Approval Process
A rigorous 10-stage sample confirmation workflow -- ensuring every detail from material, dimension and function to packaging is verified and signed off before mass production begins.
Sample Standards & Signing Basis
Every sample is evaluated against a documented reference standard. We align with client specifications, international certifications, and our own SOP benchmarks before any sign-off is granted.
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Technical Drawings & 3D Files
Dimensions, tolerances, materials and surface treatments documented.
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Certification Benchmarks
FDA, LFGB, RoHS, REACH, CE compliance criteria.
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Color, Hardness & Finish Guides
Pantone references, Shore A values, and surface texture samples.
Factory Internal Inspection
Before any sample leaves our facility, our QC team runs a complete multi-point inspection following ISO 9001 standards.
Visual Inspection
Surface finish, flash, bubbles and color consistency checked.
Dimension Check
Caliper and CMM verification against drawings (±0.1mm).
Function Test
Tensile strength, elasticity, aging and tear-resistance testing.
Safety Check
Odor, non-toxicity and food-grade material compliance.
Client Sample Review
Approved samples are shipped internationally with full inspection reports. Clients evaluate the physical product against their market expectations and brand standards.
Sample Dispatch
DHL/FedEx express shipping with QC report & spec sheet.
Client Evaluation
Hands-on review period for appearance, function & market fit.
Feedback Submission
Structured feedback form captures approvals and concerns.
Issue Logging & Modification Feedback
Transparent documentation of every discrepancy, modification request, and engineering response -- nothing is lost in translation.
Issue Record Sheet
All client comments are categorized by severity: critical, major, minor -- then logged with photo evidence.
Engineering Response
R&D team provides root-cause analysis and proposed correction plan within 48 hours.
Confirmation Loop
Client confirms modification scope before any mold or process change is executed.
Re-sampling & Re-verification
After modifications are implemented, a new sample batch is produced and the full inspection cycle repeats -- ensuring every change is validated against the original approval criteria.
Mold Adjustment
Precision tooling updates based on confirmed feedback.
Second Sample Run
New samples produced using updated process parameters.
Comparative Re-check
New vs. old samples compared with photographic documentation.
Color, Dimension & Function Confirmation
Final technical sign-off covers three critical dimensions of product quality.
Color Matching
Pantone-referenced color standards with light-box verification under D65 lighting.
Dimension Lock
All critical dimensions verified against drawings within ±0.1mm tolerance using CMM equipment.
Function Test
Elasticity, sealing, adhesion, waterproofing, and real-use scenario testing conducted.
Packaging Sample Confirmation
Packaging is treated as a product in itself. We confirm every detail -- from inner polybag thickness and printing accuracy to carton structure and shipping-mark compliance.
PP bags, header cards, blister trays
Printing color, logo placement, finish
Structural strength, shipping marks
GS1/UPC verification, scan testing
Signed Sample Documentation
The golden sample is sealed, documented, and archived. Version control ensures every production batch can be traced back to the approved standard.
Golden Sample
Dual-signed physical sample sealed for both parties.
Approval Form
Signed confirmation with full specification sheet.
Version Archive
Digital record system with full revision history.
QC Reference
Used as baseline during mass production inspection.
Pilot Run & Mass Production
With the signed sample as the quality anchor, we initiate a pilot production run, validate every parameter, then scale into full mass production -- delivering consistency, speed, and reliability at scale.
Pilot Production
Phase 1Trial batch produced to validate tooling, cycle times and quality parameters.
First-Article Inspection
Phase 2Comprehensive FAI report compared against the signed golden sample.
Mass Production
Phase 3Full-scale manufacturing with in-line QC checks per SOP standards.