100% Original Made USSR! 
Primenyaetsya to check the straightness and flatness by optical slits against the light. Made of hardened stainless steel. Accuracy classes 1 and 2. Length: 400, 500, 630, 1000, 1600, 2500 mm.
Dimensions, mm | Flatness tolerance, | µm | The parallelism tolerance, | µm | Weight | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
класс 1 | класс 2 | класс 1 | класс 2 | ||||||||||
| 630х50х14 | 8 | 12 | 12 | 20 | 2,6 | ||||||||
| 1000х60х16 | 10 | 16 | 16 | 25 | 5,8 | ||||||||
| 1600х80х18 | 16 | 25 | 20 | 40 | 14.8 | ||||||||
| 2000х120х18 | 20 | 30 | 30 | 50 | 26,2 | ||||||||
| 2500х120х20 | 25 | 40 | 30 | 60 | 39,8 | ||||||||
| 3000х120х20 | 30 | 50 | 50 | 80 | 46,6 | ||||||||
| 4000х160х30 | 40 | 60 | 50 | 100 | 130 | ||||||||
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