1. Who operates this website
HAIHUI Architectural Metalworks is operated by Qingdao Hai Ke Tian Cheng Machinery Technology Co., Ltd.. The business address is Unit 713, Building 4, No. 206 Wenxing Road, Longquan Subdistrict, Jimo District, Qingdao City, Shandong Province, China. Business and privacy requests can be sent to info@hecostech.com; identify this website and the relevant enquiry.
2. Information you choose to send
The form asks for your name, company, email, country, product category and project requirements. We use these details to review the request, discuss the proposed scope, prepare an offer and communicate about the enquiry or project. Do not include passwords, sensitive personal information or confidential material that is unnecessary for that discussion.
3. Sending and saving an enquiry
Entries remain in page memory while you edit. When the online service is available and you select Submit Inquiry, the entries are sent to the configured business inbox. A successful response identifies mail-service acceptance and a reference; it does not guarantee final inbox delivery. If sending is unavailable or fails, the page explains the result. Saving a brief creates a text file on your device and does not submit an enquiry. Form values are not written to localStorage or sessionStorage.
4. Drawings and attachments
The website form does not accept file uploads. If drawings are needed, use the business email after checking the recipient and your permission to share the documents. Email is handled by the providers used by you and the business.
5. Essential security processing
An available form uses an HttpOnly, SameSite session cookie scoped to the enquiry API. Temporary security tokens and receipt references help prevent forged or duplicate requests. Rate limiting stores a keyed hash of the connection IP address, an attempt count and a time window outside the public website. The application event log records a reference, time and transport status, without the enquiry name, email or message.
6. Providers, access and retention
The hosting and email services process requests and messages needed to operate the website and answer enquiries. Personnel handling a request use the information for that business purpose. Business emails may be retained while a project remains active and when business records or applicable obligations require retention. Contact us for the records, providers or hosting locations relevant to your request.
The application's token and duplicate-check window is 30 minutes. Expired rate entries are removed on subsequent use. Event records are limited to the most recent 1,000 entries within 30 days and pruned on the next event. PHP session cleanup and hosting access, error and mail logs follow the actual host settings; this notice does not promise an unverified deletion period for those separate systems.
7. Analytics and external links
This version adds no analytics or advertising tracker, remote web font or embedded third-party media. Hosting may retain technical requests under its service settings. External material references and links have their own privacy practices. Any later analytics service must be reflected in this notice when configured.
8. Information requests and updates
Email info@hecostech.com to ask about access, correction, deletion or other applicable information rights. Include enough context to identify the enquiry, without sending unnecessary sensitive details. We may need to verify a request and explain records that must be retained for an active project or applicable obligations. No transmission or storage system is guaranteed completely secure. Changes to this notice will be shown on this page.