1, Material:aluminum alloy and plastic parts;Feature:

2, Surface treatment: electrostatic powder coated;

3, Three vials:horizontal,plumb and 45 degree;

4, Vial feature: unbreakable/shockproof/ultrasonic welding/UV resistant

5, Accuracy: 1.0mm/m(0.001in/in=0.057° )

6, Magnetic or without magnetic optional;