... /T229-20071,GB 2106-80,ASTME23-02a European standard 5mm U-shape Broach for Impact Specimen Notch1. FunctionJinan Gaosheng Test Equipment Co ... two kinds of broach, one is U shape, and the other is V shape. European standard 5mm U-shape Broach is applicable for all specimen ... cooperative relationship with many enterprises and institutions. European standard 5mm U-shape Broach for Impact Specimen Notch