Answer: Retail orders to the contiguous U.S. qualify for free shipping if the total is $99.00 or more. Orders under $99.99 will be charged based on delivery address and package weight.

Answer: We accept credit cards, PayPal, and other major online payment methods. Full payment is required for order confirmation.

• Economy Shipping: 9–15 business days via DHL, FedEx, or USPS (contiguous U.S. and overseas).
• Expedited Shipping: 5–9 business days via DHL, FedEx, UPS, or USPS.

Answer: No. Retail orders are not eligible for returns or refunds after shipment. Please verify product specifications and requirements before placing an order.

Answer: We require corporate qualifications (business license, tax info), technical drawings, product specifications, and order quantity. Our team will draft a cooperation agreement after mutual confirmation.

Answer: Force majeure includes war, natural disasters, government policy changes, or supply chain disruptions beyond our control. In such cases, we will notify you promptly and negotiate alternative solutions.