Of course. We provide comprehensive technical support and after-sales service. You can contact our technical support team via phone, email, or online chat for guidance on installation, operation, and troubleshooting.

Absolutely! We highly encourage customers to test samples before placing a bulk order. This ensures our products fully meet your operating conditions and requirements, and it's the first step in building trust for long-term cooperation.

For standard products, we usually provide free samples. However, the express shipping cost will be at your expense.

For high-value or customized products, a sample fee may be charged, but this fee will be **fully refunded or deducted** when you place a formal follow-up order.

Please consult with our sales representative for the specific policy.

If the sample is in stock, we can ship it out within 1-3 working days.

If production is required, the lead time for standard samples is typically 5-7 working days.

The specific logistics time depends on your country and region, and our sales team will provide an estimate.

Yes. Every sample we send undergoes the same strict factory tests as our bulk orders. We can provide the Factory Test Report for that specific sample, giving you clear insight into its performance data.