Sino Age Development Technology ( SADT) was established in 1993, it is a leading manufacturer of measuring and testing instrument specialized in NDT and quality control fields. We have our own HARTIP series portable hardness testers since 1995. Now our main products cover portable and bench type hardness tester, ultrasonic thickness gauge, concrete test hammer, roughness tester, handheld metallurgical microscope, portable vibration meter, optical tachometer, ultrasonic flaw detector, gloss meter, color meter and etc. All products supplied by SADT have excellent quality and competitive price with our best service.SADT is a main manufacturer for hardness tester, thickness gauge, concrete test hammer, gloss meter, color meter, ultrasonic flaw detector, metallurgical microscope and etc
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