クレーンデリック運転士試験2023年受験対策頻出問題集アプリ

クレーンデリック運転士試験2023年受験対策頻出問題集アプリ is an education app by attractive.app with 1,000+ downloads (about 1.1K estimated). Released May 31, 2021. Install growth, rank history, SDKs and ad networks.

From the store listing: “[This is before the test !!] New release of the crane / derrick operator test preparation app. You can lie down and acquire passing skills without having to study at your desk.”