We specialized in export of API Gages, Thread Measurement etc. All the API gauges we provide are with independent third-party gauges calibration certificate to ensure products quality standard and dimensional accuracy. And the certification is recognized by API. Our products have been well sold in America, Europe, Asia, and Middle East etc. Through our competitive price, professional service and timely delivery, we win a good reputation home and abroad. Now we have many kinds and sizes of API gauges in stock and can meet the production needs of our customers. We warmly welcome your inquiry.Our main products and services:API Gages Spec 5B Plug / Ring Working & Masters API Gages Spec 7 Plug / Ring Working & MastersThread Measuring Equipments (Taper Gage, Lead Gage, Height Gage, Pitch Diameter Gages etc)Gauges Calibration API Gage