Safety Standard of Machinery, Equipment and Tools Article 36

The crankshaft press shall have indicators or others having equivalent function to show the angle of the crank rotation in obvious position.
中文原文 機械設備器具安全標準第36條
曲軸衝床應於明顯部位,設置能顯示曲軸等旋轉角度之指示計或其他同等指示功能之裝置。
但具有不致使身體介入危險界限之構造者,不在此限。

English translation for reference only; the Chinese text prevails. Not legal advice.