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* Name, precision measuring
* Item No.,RB-SV2006,
* Product name,bubble level donut
* Size,20*6MM,the out side of the donut is round, but inner side is a regular octagon,
* This vial is made of Acrylic,
* Color,purple,blue,red and so on
* The precision is 60'+/-10',the air bubble will be always at the middle of every side when put the vial on the level table
* The air bubble could be aggregated in 1 second after collision,
* The vial could bear ultraviolet radiation,
* The vial will be like the original after being experimented under -20°C with 12h and 65°C with 12h.
* We can do the vials according to your requirements(size,precision and so on)