... flaws 5 CE,ISO9001,GOST MITECH MFD500B Portable Ultrasonic Flaw Detector is a economical and practical model improved on MFD500B. ... CertificateComparation Among All the Models MITECH MFD500B Portable Flaw Detector Verified Information This information is Verified by Bureau Veritas ... Produced(Previous Year) Hardness Tester, Thickness Gauge, Flaw Detector 15,200 PCS per year 8,700 PCS Export Market ...