1.Product Name: H7 adjustment ring 2.Product Type: H7 adjustment sleeve(quartz) 3.Material: SUS 430 4.Usage: OSRAM H7 PX26D lamp 5.Product Dimension: Height: 5.0+0.1mm Outer Diameter: 22.5-0.1mm Inner Diameter: 15.0+0.05mm Thickness of material: 0.3mm 6.Product Feature: Outgassing Test: passed. 7.Packaging Details: 10000 pcs/carton. Our company: Invitech is a company committed to the manufacture and development of Metal stamping parts. The products widely used in Auto, Electric appliance, Electronics ects...Through years of operation, we have established solid, long-term and cooperative relationships with clients from India, Korea also Europe by providing manufacturing services ranging from parts to complete appliances and have become a professional metal stamping parts supplier. FAQ: 1.How do you do the cleaning after stamping? We use automatic ultrasonic cleaning machine. 2.Do you have polish process after punching? Yes, some parts need to be polished. 3.How do you do the inspection before shipping? 100% inspection.