Cookie & Tracking Policy

1. You decide whether to enable analytics

This website is operated by 河南省青松膜结构工程有限公司. Cookies are small files stored by your browser; local storage is another way to save settings on your device. We use these technologies to remember your privacy choice. Optional visitor analytics loads only after your express consent. Rejecting optional analytics does not prevent you from viewing products, projects or articles, or contacting us.

On your first visit, you can accept, reject optional items or customise your choice. Reopen settings at any time using the footer or the button below. Continuing to browse, scrolling or closing your browser does not count as consent.

Manage Cookie settings

2. Storage used by this website

• Privacy choice record — necessary: qs_privacy_choice_v1 is saved by this website in your browser's local storage. It records your selection, time and policy version. The choice is valid for 180 days. It respects your decision and is not used for analytics or advertising.
• Necessary sessions and security: the server may use session or security cookies where a particular function needs them. Names and lifetimes depend on the actual function. They support the requested service, security or session continuity; they are not necessarily created on every visit.
• Google Analytics — optional: where enabled on this website, Google Analytics loads only after you consent to analytics. Common cookies are _ga and _ga_*, used to distinguish browser visits and maintain session state. Google's default lifetime is generally two years, can be shortened or adjusted by configuration, and may refresh on visits. The actual lifetime depends on browser records and the applicable configuration.
• Advertising tracking: advertising purposes are disabled by default. Adding an advertising tool or new tracking purpose requires an updated notice and a further choice where applicable.

3. Analytics information and third parties

Analytics tools may receive page visits, referral pages, device and browser information and online identifiers to help us understand useful content. Online identifiers do not make information fully anonymous. Network connections also involve technical information such as IP addresses, and processing may take place abroad. Until you consent, or after you reject, this website does not load the optional analytics code controlled by your choice.

See Google's Privacy Policy for its handling of data and Google's official Cookie documentation for configuration details. If you follow links to WeChat, maps or other external services, their own storage and privacy rules apply. Your website choice does not replace settings within those services.

4. Withdrawal, removal and browser signals

If you reject analytics in settings and save, this website stops further analytics loading, reloads the page and attempts to remove _ga cookies it can control. Removing local cookies does not automatically erase data already sent to a provider. For further action, use Privacy Choices & Requests.

When this website detects a recognisable Global Privacy Control (GPC) signal from your browser, it keeps optional analytics off, including where you previously consented. The signal applies to browser visits in which it is recognised; it does not synchronise choices across other websites or devices.

You can also inspect, delete or block storage in your browser. Choices are stored for the current browser and website origin. Changing devices, browsers or domains, clearing storage or reaching expiry may require a new choice. If your browser cannot save the setting, your choice may apply only to the current page; optional analytics returns to its default off state after you leave or reload. See our Privacy Policy for further information and contact details.