1. Open the browser and enter the website of official website, the Construction Department of Shandong Province.
2. On the homepage of the website or related columns, find "ID card inquiry" or similar options.
3. Click to enter the document query page.
4. On the certificate query page, enter the relevant information of the tower crane certificate you need to query, such as certificate number, enterprise name, certificate type, etc.
5. Click the "query" button to query.
6. The result page will display the certificate information you entered.
7. According to the query results, the status and validity of the tower crane certificate can be confirmed and verified.
Please note that before making an inquiry, you need to prepare relevant information, such as ID number and company name. If you can't find the official website of the Construction Department of Shandong Province, you can also contact the local construction, safety or labor and social security departments to inquire about the tower crane certificate information.