When partnering with a China eyewear factory for acetate frame production, key details demand special attention. First, ensure raw materials comply with EU REACH standards. Collaborating with a China eyewear factory certified in TR90 and cellulose acetate authenticity guarantees environmental compliance from source. Second, mold precision must be within ±0.05mm tolerance - a benchmark reflecting the core technical prowess of professional China eyewear factories.

Implement three quality checkpoints: dimensional verification after sheet cutting, hinge durability testing (5,000+ cycles), and edge polishing inspection. Request IPQC online inspection reports. Notably, advanced China eyewear factories now deploy AI visual detection achieving 99.7% defect recognition.

For packaging, insist on anti-scratch PE sleeves and EVA cushioning. Verify FDA/CE certifications for Western markets. When negotiating MOQs (typically 200-500pcs) with your China eyewear factory, clarify mold development lead time (≈15 days) and production deadlines. Include penalty clauses for delays in contracts. Maintaining these standards with a reliable China eyewear factory ensures premium OEM/ODM eyewear production.