Where is the glue inlet of automobile key chain products?

The position of glue inlet is related to the type of key chain, but most of them are above the key head, such as car key chain, car key ring, car key chain and car key hanging. The materials for making automobile key chains are generally metal, leather, plastic, wood and so on. 1.PVC soft key chain; Can be customized according to the size and shape you want. 2. Acrylic keychain, plexiglass, is divided into imported materials and domestic materials, hollow and solid, transparent, with colored paper in the middle; 3. Zinc alloy key chain, zinc alloy is also one of the metals with strong plasticity. Generally, the surface is rustproof by dripping oil or plating rare metals.