Glass level bubble:
High-precision glass with long blisters, highly transparent, five-year shelf life, 30' precision, and can rotate around the 0, 0'axis to maintain accuracy.

Plastic level bubble:
The accuracy of the vial is also called the angle value. For a circular vial, the accuracy refers to the inclination of the vial when the bubble moves 2 mm along any radius from the center of the differentiation line. For a long vial, the accuracy refers to the bubble along the level. The inclination angle of the level bubble when the bubble axis moves 2 mm.

Metal level bubble:
The metal level bubble is a combination of glass sheets with precision R and metal shells such as aluminum alloy, copper or stainless steel by cold working, which is beautiful and durable, and is easy to install. The accuracy can be selected from 5'2mm to 60' 2mm, which is mainly used in triangular bases, level gauges, and high sensitivity balances.