1.Ramp table slope. 1:1.9 continuously adjustable. Double rows of 6 specimens design. 

2.spiral micrometer: 0-13mm carbide head probe, alloy measuring surface, strong wear-resistant, stable and durable. Precision 0.01m 

3.copper and wire: copper sheet made of pure copper with high electrical conductivity. The wire is made of high-temperature resistant wire with high temperature aging resistance. 

4.multimeter: using a large screen backlit display, clear handwriting with backlight function Easy to read. Passing off the beeping beep.