For over 40 years, SFGP (Société Française de Grenaillage de Précontrainte), based in Ambérieu-en-Bugey, has been an expert in industrial surface treatment, specializing mainly in shot peening or shot blasting: a process that involves bombarding metal parts to introduce compressive stresses to their surface, which boosts their fatigue resistance, longevity, and sometimes even their corrosion resistance—particularly valuable assets in the aerospace, automotive, and energy sectors. In addition to its core business, SFGP also offers complementary services such as microblasting, tribofinishing for deburring, texturing, and on-site interventions, all using modern industrial equipment (robotic shot blasting machines, control laboratory, design office) and recognized qualifications (AS9100/NADCAP in particular).