When testing, it is more likely for cold-rolled and twisted steel bar to be broken in fixture and so that its plasticity can hardly be precisely measured.
冷轧扭钢筋在检测时,试样易在夹具内断裂,其塑性难以精确测定。
By selecting test equipment and using high precision scaling device or precisely measuring the primary scale, an accurate testing of cold-rolled and twisted steel bar may be realized.