Metallic and other inorganic coatings - Test for residual embrittlement in both metallic-coated and uncoated externally-threaded articles and rods - Inclined wedge method

• 金属和其它无机物覆层。金属覆层和无覆层的外螺纹物体及棒材的残留物脆裂试验。斜楔体法