API Spec 5B Working & Master Thread Gages

FYOU PMEC, The Leading Solutions for API Gages and its measuring instruments, Provides API Spec 5B working and reference master gages per API Specification 5B for sizes from to 20 inches in diameter. All working gages are manufactured and certified using a certified API reference master gage as required by the standard. All the gages come with the long form calibration certificates traceable to NIM or NIST, availiable for audit. Contact Us: edwin@; Mobile/Wechat/WhatsApp: 86 139 6216 8423