... : Steel 3. Light, convenient, cheap for door 4. Firm slide bolt SPECIFICATIONS1. Finishing: Blue zinc plated / Imitation gold plated ( ... Steel.3. Light, convenient, easy to use. 4. Firm slide bolt, high quality. 5. Competitive price. 6. On time ... and designing various kinds of products(door H-hinges, T-hinges, spring hinges, strap hinges, flush hinges, handles, corner braces, door chains, hasps, ...