Bont Sight Glasses for level gauges have chemical and phisycal properties right for the purpose.

Application Standards
Bont sight glasses comply with the following standards:
- DIN 7080/7081
- BS 3463
- ONORM M7353/7354
- OMV H 2009
- JIS B 8211
- MIL G 16356 D
- Esso Eng. Spec. 123
- S.O.D Spec 123

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