API Monogram Explained, Page 33 - Safe to Use API Spec 6A, 16A, 17D and 7K, API Monogrammed Equipmen
Appendix B WHY YOU SHOULD LOOK FOR THE API MONOGRAM AND LICENSE NUMBER ON "API" PRODUCTS. Manufacturers who want to apply the API monogram on their equipment and materials must apply to API for a license to do so. If API that a ......