Compression springs
Sourcing Compression springs from Tetley Springs & Metal Company Limited - China Import Guide
Before ordering from Tetley Springs & Metal Company Limited, verify the exact material grade and its mechanical properties, as these directly impact performance. Request third-party test reports for tensile strength, hardness (HV or HRC), and corrosion resistance to ensure the springs meet your application’s stress and environmental conditions. Confirm whether the supplier can provide samples for prototype testing.
Discuss logistics details such as lead time, which may vary based on customization requirements. Clarify Incoterms (e.g., FOB Shanghai or CIF to your port) and packaging standards to prevent transit damage. For bulk orders, negotiate partial shipments or staggered deliveries to align with production schedules. Payment terms should be agreed upon in advance, with consideration for letters of credit or advance deposits for first-time buyers.
Quality checks should include dimensional verification against the technical drawing, load testing at specified deflections, and visual inspection for surface defects. Request a pre-shipment inspection report from a recognized third party (e.g., SGS or Bureau Veritas) to validate compliance with your specifications. Ensure all documentation, including material certificates and test reports, accompanies the shipment for customs and internal quality audits.
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