无码中文字幕久碰久_少妇无码强迫久久猛男广东_国产蜜臀AV无码一区亚洲_国产免费一区二区三区在线能观看

×

MB-7698 submental strength tester under safety cap

Video
Gallery
360°Show
×
×
×
Applicable scope
Test principles and standards
Instrument characteristics
Configuration list
It is specially designed to detect the strength of the submental belt under the safety cap.
《GB/T2811-2007 safety hat》
《GB/T2812-2006 test method for safety helmet》
1. The standard 1# head model, with stable support, is used with the simulated artificial chin.
2. The head die is connected with high precision pressure sensor.
3. LED digital display each stage of the force value.