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| Type | Axial fans |
| Series | S4D450 |
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A: Through our network of partner factories and flexible manufacturing technologies, we support customized production runs for specific structural or wear components. Technical drawings (CAD/STEP files) must be submitted for engineering review and custom prototyping quotes.
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A: The minimum order value for free shipping, if applicable, is usually mentioned in our shipping policy or promotional offers. Please refer to the specific terms and conditions to determine if your order qualifies for free shipping.
A: If the item you purchased goes on sale within a specified timeframe, you may be eligible for a price adjustment. Please contact our customer service with your order details and the sale information, and we will review your request based on our price adjustment policy.
A: On the checkout page, you can select the option for an invoice and fill in the relevant invoice information. We will provide you with the corresponding invoice according to your request.
Nov 23, 2025
Jun 11, 2025
