... .High quality, competitive price hinges 4.For door SpecificationsHeavy duty strap hinges door1. Material: Steel.2. Finishing: Blue zinc plated (other ... kinds of products(door H-hinges, T-hinges, spring hinges, strap hinges, flush hinges, handles, corner braces, door chains, hasps, etc ... .Market: Our products and design are sold well mainly in Japan, US, and Australia, also we open up our second large ...