How do you package fragile optical materials? What if they arrive damaged?

We use shock-absorbent foam + custom wooden crates for secure transit. If damage occurs, please provide photographic evidence, and we will arrange a replacement or refund.

What are the estimated delivery times to my country? Which shipping methods do you offer?

We provide air freight (5–10 business days) and sea freight (20–40 days). Expedited options (e.g., DHL/FedEx) are available at checkout.

Will there be customs issues? Can you provide HS codes?

We include commercial invoices, HS codes (e.g., 7019.90), and compliance documents with shipments. Certain countries may impose restrictions on high-purity quartz—please confirm your destination for pre-shipment verification.

Do you offer bulk discounts? What is the minimum order quantity (MOQ)?

Yes! Volume purchases (e.g., 100+ cuvettes) qualify for 5%–10% discounts. MOQ typically starts at 1–10 units (trial orders welcome).

Can you customize quartz plates (e.g., thickness/coatings)?

Absolutely. We provide tailored solutions (e.g., UV anti-reflective coatings). Share your specifications for a quote and lead time.

Which payment methods do you accept?

We support PayPal, credit cards, wire transfer (T/T), and Alibaba Trade Assurance for secure transactions.

What is your return/refund policy if the product does not meet requirements?

We offer 7–30-day hassle-free returns (unused items in original packaging). For quality issues, we cover return shipping.

Can you provide quality certifications or test reports?

Yes. We supply ISO, CE, RoHS certifications, and spectral transmittance data (e.g., UV-Vis reports for quartz plates).