1. Material: All metal parts are 45# steel heat-treated and chrome-plated 2. 45# steel aircraft lock, excellent workmanship, exquisite craftsmanship, can pass salt spray test 3. Matching webbing 5.0CM 4. Application: used in passenger cars, school buses, engineering vehicles, amusement equipment, aircraft seat belts and other equipment 5. Weight: buckle about 185G, sheet about 40G
