Fresno Leak Detecting Instruments Wholesale 1346 W Alluvial Ave Manufacturer and supplier of Q.C. leak detection instruments, used for checking packaging and seal integrity of manufactured consumer goods Fresno CA Leak Detecting Instruments Wholesale Visual Check Intl www.visualcheck.com leak detect leak detector leak detecting visualcheck leak detection package leaks package check package integrity bell jar visual check seal tester vacuum vacuum detector fish tank bubble tester quality control leak detect leak detector leak detecting visualcheck leak detection package leaks package check package integrity bell jar visual check seal tester vacuum vacuum detector fish tank bubble tester quality control Business Reviews Visual Check Intl Testimonials