What are the types of retaining rings for synchronous wheels? How many ways are there to fix the retaining ring? What are the forms of surface treatment? How many colors are available for surface treatment?

1. What are the types of retaining rings for your company's synchronous wheels? Punching 45# retaining ring, laser 45# retaining ring, laser aluminum alloy retaining ring. 2. How many ways are there to fix the retaining ring? Extrusion, welding, screw fixation, structural locking. 3. What are the forms of surface treatment of synchronous wheels? 45# steel has blackening, nickel plating, and zinc plating; aluminum alloy has oxidation. 4. How many colors are available for the surface treatment of aluminum alloy? Available in white, metallic, blue, and black. 5. What color does 45# galvanized have? White zinc, color zinc and blue zinc.