#metalsUnmoderated tagAll postsExplore CommunitiesTrending CommunitiesNewcomers' CommunitySteemitCryptoAcademySteemit Feedbackআমার বাংলা ব্লগKorea • 한국 • KR • KOSTEEM CN/中文Steem AllianceAVLE 일상WORLD OF XPILARComunidad LatinaTron Fan ClubBeauty of Creativity#metalsTrendingHotNewPayoutsMutedsinosteelpipe (30)in #metals • 12 hours agoThe use of metals by humans, the past, present, and future of metallic materialsI. The Development History of Metallic Materials Phase 1 – Use of Native Metals, Emergence of Iron and Steel…