Modsonic Instruments Manufacturing Company Pvt. Ltd. Supplies High Temperature Delay Lines. Modsonic Instruments Manufacturing Company Pvt. Ltd. Is an ISO 9001 accredited company. Modsonic Instruments Manufacturing Company Pvt. Ltd. Manufactures ultrasonic testing equipment. High Temperature Delay Lines is made of special polyimide high temperature resistant polymer. High Temperature Delay Lines can withstand surface temperature up to 250 deg. C. It can be attached with single crystal normal probes of 10mm dia. Or 24mm dia. Using the provided threaded ring. This delay lines can be attached with probes.