Privacy Policy

Last updated: January 29, 2026

 

Who we are

Our website address is: https://yongchenghuifa.com.
We are Shenzhen Yongchenghui Precision Machinery Co., Ltd., a professional manufacturer of precision mechanical components (e.g., timing belt pulleys, sprockets, transmission parts) for industrial and automation applications.

Information We Collect & How We Use It

 1. Business Inquiry Information (Core for B2B Customers)

When you submit a business inquiry (e.g., product quotation, technical support request, order consultation) via our contact form or email, we collect:
– Your personal contact details: name, email address, phone number.
– Your business details: company name, industry, product requirements, order specifications.
– Purpose: These information are only used to respond to your inquiry, provide quotations, arrange production/delivery, and support after-sales service. We will not use them for unsolicited marketing without your consent.

2. Comments (If Applicable)

When visitors leave comments on the site, we collect the data shown in the comments form, plus the visitor’s IP address and browser user agent string to help detect spam.
– An anonymized hash of your email address may be sent to the Gravatar service (privacy policy: https://automattic.com/privacy/) to check if you use it. After your comment is approved, your profile picture (if any) will be visible to the public.

3. Media Uploads

If you upload images to the website, avoid including embedded location data (EXIF GPS). Visitors can download and extract location data from images on the site.

4. Cookies

– Comment Cookies: If you leave a comment, you may opt to save your name, email address, and website in cookies (valid for 1 year) for convenience when leaving future comments.
– Login Cookies: Temporary cookies (no personal data) are set when visiting the login page to check browser compatibility. Login cookies last 2 days; “Remember Me” extends this to 2 weeks. Screen options cookies last 1 year.
– Article Edit Cookies: An additional cookie (no personal data, expires after 1 day) is saved when editing/publishing articles, indicating the post ID of the article edited.

Embedded Content from Other Websites

Articles on this site may include embedded content (e.g., videos, images). This content behaves like visiting the original website—those sites may collect your data, use cookies, or track interactions (especially if you are logged in to their accounts).

Who We Share Your Data With

We do NOT sell, rent, or trade your personal/business data to third parties for marketing purposes. We may share your information only in the following cases:
– Trusted Partners: To fulfill orders (e.g., logistics providers like DHL/FedEx for delivery; payment processors for transaction verification). These partners are bound by confidentiality obligations and can only use your data for the specified purpose.
– Legal Requirements: If required by law, regulation, or government authority to protect our legal rights, safety, or comply with official requests.

How Long We Retain Your Data

– Business Inquiry Data: Retained for 3 years after the completion of your order/cooperation (to support after-sales service and comply with tax/legal record-keeping requirements).
– Comments & Metadata: Retained indefinitely to recognize and approve follow-up comments automatically.
– User Profile Data (If Registered): Retained as long as your account is active. You can edit/delete your data at any time; administrators can also access and manage this information.

What Rights You Have Over Your Data

If you have submitted an inquiry, left comments, or registered an account, you have the right to:
– Request an exported file of the personal/business data we hold about you.
– Request the erasure of your personal data (except data we are legally required to retain for administrative, legal, or security purposes).

To exercise these rights, contact us via the details at the end of this policy.

Where Your Data Is Sent

– Visitor comments are checked through an automated spam detection service.
– Business inquiry data is stored on our secure internal servers (located in China) and protected by technical security measures (e.g., encryption, access controls).

Contact Us

If you have questions about this Privacy Policy or your data, contact us:
– Company: Shenzhen Yongchenghui Precision Machinery Co., Ltd.
– Website: https://yongchenghuifa.com
– Email:  szprsfa@163.com
– Phone: +86 15012945358
– Address: Building 26, Lianmei 1st Road, Shangcun Community, Gongming Street, Guangming District, Shenzhen, Guangdong, China