How do you protect our proprietary design drawings from leaks?

July 24, 2026
17

Proprietary design drawings and technical information for custom aluminium profiles should be handled according to the applicable confidentiality agreements, contractual requirements, and internal document-management procedures. Before submitting sensitive CAD drawings, customers can discuss the applicable confidentiality and intellectual-property protection arrangements with the sales or legal team. Specific information-security measures, access permissions, storage methods, and intellectual-property management certifications should only be described where they have been formally implemented and can be supported by current company documentation.

Core Solutions & Key Takeaways

Confidentiality Agreements: Where an NDA or other confidentiality agreement is required, its scope, confidentiality obligations, permitted use, disclosure restrictions, and applicable term should be confirmed with the relevant sales or legal team before technical information is exchanged.
Drawing Access: Access to customer drawings should be managed according to the company’s actual document-management and engineering workflow. The specific personnel or departments permitted to access a drawing should be confirmed according to the project.
Customer Intellectual Property: Customer-owned drawings, specifications, designs, and other proprietary information should be handled according to the applicable contractual terms. Ownership and permitted use of tooling should likewise be defined in the relevant commercial or tooling agreement.
Document Management: CAD, DWG, PDF, technical specifications, and other project documents should be handled through the company’s actual document-management procedures. Specific encryption, server-isolation, backup, or access-control technologies should only be stated when verified by the company’s IT or management teams.
Intellectual Property Management: If the company holds a valid GB/T 29490 certification, the certificate number, validity period, certification scope, and issuing organization should be verified before publication. A management-system certification should not be presented as a guarantee against every possible unauthorized disclosure or copying incident.

Detailed Architectural / Principle Analysis

Protecting proprietary customer drawings involves both contractual and operational controls. During a custom aluminium profile project, technical information may include CAD drawings, dimensional specifications, alloy and temper requirements, surface-treatment requirements, tooling information, application details, and other project-specific documentation.

The appropriate handling process depends on the company’s actual internal procedures and the contractual requirements agreed with the customer. Sensitive documents may be made available to the personnel involved in technical evaluation, tooling development, production, quality control, or other authorized project activities as required by the project.

Rather than assuming a particular IT architecture, customers should confirm the actual document-storage, access-control, backup, and security procedures applicable to their project with the relevant company representatives.

Intellectual property management system certification document

Custom Drawing and Tooling Management

For custom extrusion projects, technical drawings are normally reviewed as part of the engineering and tooling-development process. The applicable project documents should be linked to the relevant customer order or project so that engineers can work from the approved technical information.

Ownership and permitted use of custom extrusion tooling should be clearly defined in the quotation, tooling agreement, purchase order, or other applicable contractual documents. If the customer pays for dedicated tooling, the parties should confirm tooling ownership, storage, maintenance, reuse, transfer, and disposal arrangements in writing.

Tooling identification methods may vary according to the company’s production and warehouse-management procedures. A specific claim that customer names are replaced with randomized codes should only be published if this is an actual and documented internal procedure.

Aluminum extrusion manufacturing facility and production equipment

Confidentiality and Intellectual Property Agreements

For projects involving proprietary designs, customers may request an NDA or other confidentiality agreement before providing sensitive technical information. The exact timing and form of the agreement should be confirmed by the relevant sales or legal personnel.

An NDA can define how confidential information may be used and disclosed, but it should not be described as an absolute guarantee that unauthorized disclosure can never occur. The applicable agreement should specify the parties, confidential information, permitted purposes, confidentiality obligations, exceptions, duration, and remedies where appropriate.

Information Security and Access Control

Digital access to proprietary drawings should follow the company’s actual information-management procedures. Depending on the systems implemented by the company, access may be assigned according to project responsibilities or user permissions.

Specific statements regarding encrypted local servers, isolated databases, role-based access control, prohibited external storage devices, mobile-phone restrictions, cybersecurity architecture, or other technical controls require confirmation from the company’s IT or information-security team before they are presented as established company practices.

Similarly, a CNAS-accredited laboratory should not automatically be described as the exclusive or authorized department responsible for customer drawing security. CNAS accreditation concerns the laboratory’s applicable testing or calibration scope and does not itself establish an information-security system.

Data / Solution Comparison

Security Parameter	Recommended Description	Evidence / Confirmation Required
NDA / Confidentiality	NDA or confidentiality terms can be agreed where required for a project	Applicable NDA, confidentiality agreement, or contractual terms
Drawing Access	Access should follow the actual project and document-management procedures	Internal document-management or access-control procedures
Drawing Storage	Describe the actual storage system used for project documents	Confirmation from IT or document-management personnel
Tooling Ownership	Ownership and permitted use should be defined in the applicable commercial or tooling agreement	Quotation, tooling agreement, purchase order, or contract
Tooling Identification	Use the actual production and warehouse identification procedure	Internal production or warehouse-management procedure
Intellectual Property Management	Describe applicable management-system certification only within its verified scope	Current certificate, issuing organization, validity, and certification scope

Frequently Asked Questions (FAQ)

Can we sign an NDA before submitting our custom CAD drawings?

Customers can request an NDA or other confidentiality agreement before exchanging proprietary technical information. The applicable agreement and signing process should be confirmed with the sales or legal team before sensitive drawings are submitted.

Are our custom extrusion molds protected from use by other customers?

The ownership and permitted use of custom tooling should be defined in the applicable tooling or sales agreement. If dedicated tooling is owned by the customer, the agreement should specify whether the tooling may be used for other customers, how it is stored, and what happens to the tooling after the project ends.

How are proprietary CAD and DWG files protected?

Project drawings should be handled according to the company’s actual document-management and confidentiality procedures. Customers requiring specific controls, such as restricted user access, encryption, storage requirements, or deletion procedures, should confirm these requirements with the relevant company representatives before exchanging sensitive files.

Does GB/T 29490 certification guarantee protection against intellectual-property leakage?

No certification should be described as an absolute guarantee against unauthorized disclosure, copying, or cybersecurity incidents. If the company holds a valid GB/T 29490 certification, its role should be described according to the certificate’s actual scope and validity. Specific information-security controls should be verified separately.

Does CNAS accreditation provide protection for customer drawings?

CNAS accreditation concerns the competence of a laboratory for specified testing or calibration activities within its accredited scope. It should not be presented as an information-security certification or as evidence that customer drawings are protected from unauthorized disclosure.

Are all custom tooling and manufacturing processes completed in-house?

The actual production and sourcing arrangement should be confirmed for each project. Claims concerning in-house tooling fabrication, extrusion, machining, anodizing, powder coating, or other processes should only be published when they accurately reflect the company’s current production capabilities and supplier arrangements.

Final Conclusion & Recommendations

Protection of proprietary aluminium profile drawings should be based on verifiable contractual, document-management, and operational procedures. NDA agreements can establish confidentiality obligations, while project-specific access and document-management procedures can help control the handling of customer technical information.

Statements about encrypted servers, isolated databases, role-based access control, physical restrictions, tooling coding systems, or other information-security measures should be published only after confirmation by the relevant IT, legal, or management teams. Similarly, GB/T 29490 certification should only be referenced after verifying the current certificate, certification scope, validity, and issuing organization.

For custom extrusion projects, customers should clearly define drawing ownership, permitted use, confidentiality requirements, tooling ownership, tooling storage, and any special information-security requirements in the applicable contractual documents. This provides a clearer and more verifiable basis for managing proprietary designs throughout engineering, tooling, production, and delivery.

For detailed technical, tooling, confidentiality, or project requirements, please contact us via [email protected].

About Us

Guangdong Xinhe Aluminium Co., Ltd. focuses on the research, development, and production of building, decorative, and industrial aluminium profiles. Established in 1998, the company operates a large-scale manufacturing facility with multiple extrusion production lines and serves customers in international markets. The company’s quality, laboratory, intellectual-property, and management-system certifications should be described according to the current official certificates and their respective scopes.