Frequently Asked Questions
The questions buyers ask us most. If yours is not here, message us directly.
What is your MOQ?
For OEM orders the standard MOQ is 1,000 pcs per model per colour. For ODM orders using an existing platform, we can sometimes accept 500 pcs. Exact MOQ is confirmed in the quotation.
Can I get a sample before ordering?
Yes. We provide samples for evaluation. Sample cost and freight are usually deducted from your first bulk order.
How long is production lead time?
Typically 15–25 days after sample approval and deposit, depending on model and quantity. Peak season (September–November) may be slightly longer.
What payment terms do you accept?
Standard terms are T/T — 30% deposit and 70% balance before shipment. We can also discuss L/C for larger orders.
What trade terms do you use?
Trade terms are agreed case by case — they depend on your destination and order size. Tell us where the goods need to go and we will quote the term that fits best.
Do your products come with certifications?
Products can be supplied with CE, FCC, RoHS, UL, SASO and G-Mark as required by your market. Tell us your destination country and we will confirm what applies.
Can you print my logo and use my packaging?
Yes — that is the core of our OEM service. Logo printing, custom housing colour and fully branded retail packaging are all standard for us.
How do you ship?
By sea, air or express depending on volume and urgency. We can work with your freight forwarder or arrange shipping for you.
How do you control quality?
Incoming material inspection, in-line checks during assembly, and a final inspection before packing. Capacity and safety tests are run on each batch.
What if there is a defect?
Manufacturing defects are covered for 12 months. Report with photos and order number, and we will replace or credit the units in your next order.
Can I cancel my order or get a refund?
Yes, depending on the stage of the order. Before shipment you can cancel for a full refund. If it has shipped but has not arrived, we investigate with the carrier and, if the parcel is confirmed lost, refund you in full or reship free of charge. For quality issues after delivery, send photos or video within 7 days and we will replace or refund the affected items. Custom-made orders are not returnable for non-quality reasons. Full terms: https://thzsz.com/en/p/refund
Can I download your product catalog?
Yes. The 2026 catalog covers 98 models across six product lines in 17 A4 pages, in English and Arabic. Open thzsz.com/en/p/catalog, enter your business email, and the PDF is sent to your inbox right away with a direct download link valid for 30 days.
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