... Rebar Tying Machine, Rebar Tying Tool, Rebar Tier, Rebar, Hand tool, Hand-hold tool, tying tool, knoting tool,tier, hardware tool, wire, rebar tier wire, rebar ... operate. Now it is more and more popular in building sites.Before injecting the concrete during the construction of ... building, road, bridge, etc., ironworkers tie rebar by hand with ...