notch bar test 缺口杆试验

notch-bar hot bed 齿条式热床

notch bar bending test 缺口弯曲试验

notch-bar impact strength 缺口试样冲击值

notch-bar cooling bed 齿条式冷床

notch bar hot bed 齿条式热床

notch bar cooling bed 齿条式冷床

notch-bar impact test 切口棒冲击试验

notch-bar fatigue test 缺口试样疲劳试验