Drying time Recorder

The number of strokes is 6 needles, the stroke is 305mm, the track period is 6/12/24 h, the sample size is 316 * 24 * 3mm, the track period is 6/12/24 h, the track is straight, the execution standard GB/T1728-89, the measurement error is +/- 4%.

The number of strokes is 4, the size of the strokes is R 0.25/0 5/1.0/1.5mm, the stroke is φ 100mm, the track period is 6/12/24 h/T, the execution standard GB/T1728-79, and the measurement error is +/- 0.5%.