这两种都是用光面圆钢筋或细棒绕着铁芯制作。
Both of these mostly made with plain round bars or thin rods wound round a core.
不锈钢钢筋，在各种建筑中加固混凝土的坚固的棒，现在也不再在美国生产。
Stainless steel rebars, the sturdy rods that reinforce concrete in all kinds of construction, are now no longer made in America.
玻纤棒材在某些加强混凝土的工程中已经取代了钢筋因为道路溶雪剂会渗入混凝土而腐蚀钢筋。
Glass-fiber rods have replaced steel in some reinforced concrete work, because corrosion of steel rebar from road de-icing chemicals destroys concrete.
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