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Terms and Conditions

Terms and Conditions


Company – Additive Manufacturing for Medical Applications Limited (AMMA)

Customer – Any organisation, and or individual, that requests goods/services from the Company


Quotation and Payment

  • Quotes are valid for 30 days from date of issue.
  • Payment must be made in full prior to printing.
  • Production lead-times are based on the object complexity and layer resolution. Actual delivery can be confirmed at time of order.
  • All prices quoted are in Hong Kong Dollars.
  • Accepting a quote also implies acceptance to all of AMMA’s terms and conditions.
  • AMMA reserves the right to re-generate the quote to the customer with any updates of product specification or part design change.
  • For ordering 10 pieces or more, AMMA will provide a rapid prototyping model after signing quotation. This dummy model is for visualization and design check only. Once the dummy model has been confirmed by customer, the production will start.



  • Accuracy: 20-85 microns for features below 50 mm; up to 200 microns for full model size (for rigid materials only)
  • Material data sheets are available for all printing materials.
  • AMMA will reproduce color from submitted print-ready files as closely as possible, but cannot exactly match color because of limitations in the printing process.
  • For printing color object, the customer needs to provide a RGB color code for printing object.



  • Your order will be delivered to your shipping address or will be available for pick-up depending on the service you choose. AMMA is not liable for incorrect shipping addresses, and no refunds are given if incorrect shipping addresses are given.
  • All packages are sent out in a protected box and by recorded delivery. In the event that packages are returned to us we will resend them out, and this may incur additional charges to the customer.
  • AMMA offers free delivery to Hong Kong. For product requiring delivery outside of Hong Kong, delivery charges are responsible by customer.
  • Due to the nature of our Services, you cannot cancel your order after it goes into production.
  • We are not responsible for the design by customer, all dimensions, layer resolution, color are based the STL/VRML file which provided by the customer. AMMA will not provide assembly process to the customer.


Minimum Guaranteed Thickness

  • Parts are guaranteed to a minimum wall thickness of 1 mm. AMMA is able to provide high resolution printing with objects thickness are less than 1 mm (up to 0.6mm), but the customer needs to take risk of easy damage and fragile to the printing model that due to the thin model thickness. If this damage occurred in the customer side after good received, it will not be covered or re-printed for free.



Privacy Policy and Record Keeping

  • AMMA is committed to protecting the privacy of its customers and in preventing unauthorized use of the information it collects.
  • All quotes and associated files will be kept for 30 days and then deleted/destroyed.