JHS-F fluorescence electric endoscope 1. FeaturesJHS-F fluorescence electronic endoscope ... such as welding line, shaft, motorcycle, part, valve, piston, bolt, turning burl, etc. It has two sets of ... boiler pressure vessel, and so on.3. Technical parameters 1. Field angle: 95 ° 2. Bending angle: up ... . Voltage used: AC 220V±22 V 50 Hz±1 Hz13. Consecutive working hours: 48 hours14. Working environment ...