Privacy Policy

1. Introduction

DH CNC Busbar Machine ("DH CNC," "we," "us," or "our") operates the website cncbusbarmac.com (the "Site"). We are a B2B industrial CNC busbar machinery manufacturer based in Jinan, Shandong, China.

This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you:

• Visit and browse our Site
• Submit a B2B machine quote request or engineering inquiry form
• Communicate with us via WhatsApp, email, or phone
• Subscribe to or interact with our content

By using our Site, you agree to the collection and use of information in accordance with this policy. If you do not agree, please discontinue use of the Site.

2. Information We Collect

2.1 Information You Provide Directly

When you fill out a form on our Site — including but not limited to the Request Quote form, Contact form, or homepage engineering audit form — we may collect:

• Identity & Contact Data: Full name, company name, job title
• Communication Data: Email address, phone/WhatsApp number
• Technical Requirements: Copper dimensions, voltage specifications, CAD drawings (DXF/STEP files), plant grid standards
• Message Content: Any additional information you voluntarily include in your inquiry

This information is collected through Web3Forms, our third-party form processing service. Please refer to Web3Forms' Privacy Policy for details on how they handle submitted data.

2.2 Information Collected Automatically

When you browse our Site, we automatically collect certain information via standard internet technologies:

• Usage Data: Pages visited, time spent, scroll depth, click interactions
• Device Data: Browser type, operating system, screen resolution, device category
• Network Data: IP address (anonymized), approximate geographic location (country/city level), referring URL

This data is collected through Google Analytics 4 (GA4). GA4 does not log or store individual IP addresses. All analytics data is aggregated and anonymized. See Google's Privacy & Terms.

3. Cookies and Tracking Technologies

Our Site uses minimal cookies for essential functionality and anonymous analytics:

Note: Our Site does not use advertising cookies, retargeting pixels, social media trackers, or third-party marketing cookies. We do not sell, rent, or trade your browsing data to any advertising network or data broker.

4. How We Use Your Information

We use the information we collect for the following purposes, grounded in legitimate business interests and contractual necessity:

• B2B Inquiry Response: To respond to your machine quote requests, technical consultations, and CAD/drawing review submissions.
• Order Processing: To prepare commercial invoices, packing lists, certificates of origin, and other export documentation required for international machinery shipments.
• Service Improvement: Aggregated anonymous analytics help us understand which CNC busbar machine product pages and technical resources are most useful to procurement engineers.
• Legal Compliance: To comply with applicable Chinese export regulations, international trade laws, and tax obligations.
• Communication: To notify you of important changes to our services, policies, or product specifications.

5. Third-Party Service Providers

We share data only with the following service providers, and only to the extent necessary for them to perform their functions:

We do not sell, rent, lease, or otherwise disclose your personal or business information to any other third parties for their own marketing purposes.

6. International Data Transfers

DH CNC is headquartered in Jinan, Shandong, China. Your information may be transferred to, stored, and processed in China or other countries where our service providers maintain facilities.

For users in the European Economic Area (EEA), United Kingdom, Brazil (LGPD), or other jurisdictions with data transfer restrictions: we take appropriate safeguards to ensure your data receives an adequate level of protection. By submitting your information, you explicitly consent to this transfer for the purpose of responding to your B2B inquiry.

For EU/EEA users: the legal basis for processing your data is legitimate interest (Article 6(1)(f) GDPR) — responding to your voluntary B2B inquiry — and, where applicable, contractual necessity (Article 6(1)(b) GDPR) for quote preparation and order processing.

7. Data Security

We implement appropriate technical and organizational security measures to protect your data:

• Encryption in Transit: All data transmitted between your browser and our Site is encrypted via HTTPS (TLS 1.3).
• Form Security: All form submissions are processed through Web3Forms with built-in spam filtering, bot detection, and encrypted transmission.
• Access Control: Form submission data is accessible only to designated DH CNC engineering and sales personnel who need it to respond to your inquiry.
• No On-Server Storage: We do not store submitted CAD drawings or form data on publicly accessible web servers.

While we strive to use commercially acceptable means to protect your data, no method of transmission over the Internet is 100% secure. We cannot guarantee absolute security.

8. Data Retention

We retain your personal data only for as long as necessary to fulfill the purposes outlined in this policy:

• Inquiry/Form Data: Retained for the duration of the business relationship plus 24 months after last contact, to support warranty claims, spare parts requests, and follow-up engineering support.
• Analytics Data: Aggregated anonymous analytics data may be retained indefinitely for trend analysis.
• Export Documentation: Retained for the period required by applicable Chinese tax and customs regulations (typically 5 years).

9. Your Data Protection Rights

Depending on your jurisdiction, you may have the following rights:

• Right to Access: Request a copy of the personal data we hold about you.
• Right to Rectification: Request correction of inaccurate or incomplete data.
• Right to Erasure: Request deletion of your personal data ("right to be forgotten"), subject to legal retention obligations.
• Right to Restrict Processing: Request that we limit how we use your data.
• Right to Data Portability: Request your data in a structured, machine-readable format.
• Right to Object: Object to processing based on legitimate interests.
• Right to Withdraw Consent: Withdraw previously given consent at any time.

To exercise any of these rights, please contact us using the details in Section 11. We will respond within 30 calendar days. There is no fee for reasonable requests.

If you are in the EEA and believe we have not addressed your concern, you have the right to lodge a complaint with your local Data Protection Authority (DPA).

10. Business-Only Scope

Our Site is a B2B industrial machinery platform intended exclusively for business professionals, procurement engineers, and authorized representatives of companies engaged in electrical infrastructure manufacturing.

We do not knowingly collect personal data from individuals under the age of 18. If you believe a minor has submitted data through our Site, please contact us immediately, and we will promptly delete it.

11. Changes to This Privacy Policy

We may update this Privacy Policy periodically to reflect changes in our practices, legal requirements, or operational needs. The "Effective Date" at the top of this page indicates when the latest revision took effect. We encourage you to review this page when submitting new inquiries. Material changes may be communicated via a notice on our homepage.

12. Contact Information

For questions about this Privacy Policy or to exercise your data rights, contact: