Our company, L&B Instruments is specialized in sample defect manufacture. We would like to perform measurements by different methods (eddy current, ultrasonic, etc..) in order to build benchmarks. We do not know if there is a important need of sample defects data in the world. We post this message for probing your opinion. If there is a important need, we will launch benchmarks production. Benchmarks are less expensive than samples, because many people can share one benchmark. Please answer us at firstname.lastname@example.org. Thank you very much. Best regards.