Help Center

Find answers to common questions, browse guides, or reach out to our support team.

Order & Shipping Track orders, delivery times, and shipping methods. Payment & Invoicing Payment methods, tax invoices, and refund policies. Product & Quality Specifications, certifications, and quality assurance. Technical Support Datasheets, BOM matching, and engineering support.

Order & Shipping

How can I track my order?

Once your order ships, you will receive an email with a tracking number. You can also log in to your account to view the latest shipping status.

What are the delivery times?

Standard delivery takes 3–7 business days within China and 7–15 business days for international shipments, depending on the destination and customs.

Which shipping methods are available?

We support DHL, FedEx, UPS, TNT, and SF Express. You can select the preferred carrier at checkout or contact us for a specific arrangement.

Payment & Invoicing

What payment methods do you accept?

We accept bank transfer (T/T), PayPal, Western Union, and corporate purchase orders for verified customers.

Can I get a tax invoice (fapiao)?

Yes. Please provide your company name and tax ID when placing an order, and we will issue a VAT invoice within 3 business days.

What is your refund policy?

Defective or incorrect items can be returned within 30 days for a full refund or replacement. Custom-made parts are non-refundable unless they fail to meet specifications.

Product & Quality

Do your products have certifications?

Yes. Our products are manufactured under ISO 9001, ISO 14001, and ISO 45001 certified processes. Product-specific certificates (UL, RoHS, REACH) are available on request.

Can I request a datasheet?

Yes. Each product detail page has a "Download Datasheet" button. If the datasheet is not listed, contact us with the part number and we will send it within 24 hours.

What is the quality assurance process?

Every batch goes through incoming inspection, in-process quality control, and final outgoing inspection. Test reports can be provided with your shipment.

Technical Support

Can you help match my BOM?

Yes. Upload your BOM list via the "Upload a list" button in the header, and our engineers will cross-reference alternatives and send a quote within 48 hours.

Do you offer custom manufacturing?

Yes. We provide custom tooling, stamping, and injection molding for connectors and terminals. Share your drawings or samples and we will quote within 5 business days.

How do I get engineering support?

Email your inquiry to our technical team via the Contact Us page, or call our customer service line during business hours (Mon–Fri, 9:00–18:00 CST).

Still need help?

Our team is ready to assist with product inquiries, technical questions, and partnership opportunities.