[For the 2021 exam] Preparatory course for concrete engineers and chief engineers

《How to use this product》

*The video will be streamed on the video sharing site "vimeo".
*The video itself will not be downloaded.

1. Download zip file

When you purchase this product, we will issue a URL from which you can download a zip file containing multiple files. The URL will be sent to the email address you entered at the time of purchase, so please download it.

 *You can download up to 3 times.
*Cash on delivery payment is not available at the time of purchase.

2. unzip the zip file

When you unzip the downloaded zip file, multiple files will be expanded. How to watch the video is described in the "Introduction" file. Click the URL (the viewing page URL of the video sharing site Vimeo) and watch the video.
Please note that communication costs will be borne by the customer.