国产一级a毛一级a看免费视频,久久久久久国产一级AV片,免费一级做a爰片久久毛片潮,国产精品女人精品久久久天天,99久久久无码国产精品免费了

硬度計是測量物體硬度的儀器，表示材料抵抗硬物體壓入其表面的能力。它是金屬材料的重要性能指標之一。一般硬度越高，耐磨性越好。根據所測硬度單位：洛氏硬度計、維氏硬度計、顯微硬度計、布氏硬度計、邵氏硬度計、巴氏硬度計、里氏硬度計、韋氏硬度計、肖氏硬度計、布洛維硬度。根據使用方式：便攜式硬度計、臺式硬度計。

進口硬度計美國Check-Line CLE-150型硬度計底座專為測量橡膠，塑料的硬度，通過動閥門和砝碼來固定硬度計與樣品，測量更為精準。

3 Models Available:

Check-Line CLE-150L: For Shore A and Asker C Durometers

Checkline CLE-150H: For Shore D Durometers

Check-Line CLE-150M: For Shore A, D and Asker C Durometers

Checkline CLE-150 motorized constant speed/load stａnd eliminates speed and load variables which occur when hand-testing samples with a durometer. Select speeds from 0.1~19.9 mm/sec in .1 mm increments.

Choose a model with the appropriate hardness scale for the material you are testing. In addition, the unique flexible coupling enables the presser foot of the durometer to make perfect contact even on samples with inclined surfaces.