FAQs

Yes. Shandong Jining Huadun Door Industry Co., Ltd. is a direct manufacturer in China specializing in fire protection door systems, industrial doors, sectional doors, roll up doors and related solutions.

Yes. Most of our products can be customized according to opening size, application, installation conditions, material, finish, control requirements, voltage and project specifications.
For project-based orders, we recommend providing drawings, dimensions or site photos so that we can suggest a suitable solution.

Yes. We support OEM and ODM services for suitable projects and long-term cooperation, including customized dimensions, product configurations, finishes, control systems, accessories and packaging requirements.

Normally, we need:
Product type
Opening width and height
Quantity
Application
Installation method or site conditions
Motor voltage and frequency, if required
Destination country
Drawings or site photos, if available
For fire protection products, additional technical information may be required.

Yes. We can review architectural drawings, door schedules, technical specifications and project requirements before production.
If the customer does not have complete drawings, our team can also assist in confirming the required dimensions and product configuration.

MOQ depends on the product type.
For many customized door products, we can support small-quantity or project-based orders. For accessories, components or OEM products, the minimum quantity may depend on the specific item and production requirements.
Please contact us with your required product and quantity for confirmation.

Sample availability depends on the product.
For smaller components, materials or accessories, samples may be available. For large customized doors, producing and shipping a complete sample may not always be economical, so we may recommend material samples, component samples, drawings, videos or a trial order instead.

Certification and testing documents vary by product and configuration.
We can provide available product certificates, test reports and quality-related documents according to the specific product and project requirements.
Customers are encouraged to confirm the required local standards before ordering, especially for fire protection products.

Production time depends on the product type, quantity, customization requirements and current production schedule.
After the technical details and order are confirmed, we will provide an estimated production schedule for the project.

Yes. We can assist with international shipping according to the destination and customer requirements.
Depending on the project, we can provide suitable shipping options and support different trade terms. Freight cost is normally calculated separately according to product volume, weight and destination.

Yes. We can provide installation drawings, product manuals, technical guidance and remote support.
For customized or project-based products, we recommend confirming the installation conditions before production to reduce installation problems on site.
If on-site installation support is genuinely required, we can also arrange engineers or installation personnel to provide on-site assistance. This service is subject to the project location, schedule and actual requirements, and reasonable service, travel and related costs will be charged accordingly.

Yes. We can supply compatible spare parts and accessories for our products, including selected motors, control components, rollers, seals, pulleys, springs and other parts.
Please provide the product model, photos, dimensions and required quantity so that we can confirm compatibility.