A static website, without an online contact form
This version provides service information, project examples and downloadable blank checklists. It has no contact form, account registration, attachment upload or customer database connected to the website. Downloading a checklist does not send its completed contents to us.
Hosting and technical request information
The site is hosted and delivered using Cloudflare. Requests can include your IP address, requested address, time, browser or device information and other technical connection details needed to deliver and protect the service. Cloudflare processes this information in accordance with its applicable service terms and privacy information. Its infrastructure may process information in countries other than your own.
Read Cloudflare’s privacy policy for the provider’s information. This site does not provide a guarantee about the location or retention of the provider’s operational records.
Cookies, analytics and local browser functions
Our website code does not add advertising trackers, third-party analytics, embedded social-media feeds or marketing cookies. The hosting/security service may use technical measures or cookies when necessary to deliver and protect the site. Copying the displayed email address places only that address on your clipboard, after you choose the copy button. Page navigation, image enlargement and filtering do not submit an enquiry.
Contact by email or telephone
If you choose to email us, you send the message from your own mail service. Our listed mailbox uses Google Gmail. Your email address, message and any information you choose to supply are processed by the relevant email providers and reviewed by us to respond to your request, discuss scope, prepare a quotation or carry out agreed work. We do not send an email merely because you visit this website or open an email link.
Our team is based in Chongqing, China. Direct correspondence may therefore be accessed and handled there, and email service providers may process it elsewhere. Telephone discussions similarly involve the information you choose to share and the relevant telecommunications services.
Retention and access
We retain business correspondence as needed to handle the enquiry, carry out agreed work and meet applicable recordkeeping obligations. The appropriate period depends on the purpose and any resulting agreement; we do not promise automatic deletion after an arbitrary fixed number of days. Access is limited to people who need the information for those tasks and the providers involved in delivering the services.
Your questions and requests
Contact truongl153a8@gmail.com to ask about information you have sent us, request a correction or request deletion where applicable. We may need to verify the request and account for legal or contractual recordkeeping requirements. Do not send identity documents, passwords, payment details or confidential engineering files merely to make an initial enquiry.
Other websites and future changes
The Chinese company website and external reference links are separate destinations. Their services and privacy practices may differ. If we later add an online enquiry service, analytics or other data collection, we will update this notice and the relevant interface before enabling it.
Notice updated: 20 October 2026. Business contact: +86 181 6630 0502 · Chongqing, China.