... Molybdenum silicon powder -Shapes:U/W/X/L type -Dia: 3/6,4/9,6/12,12/24mm Smooth higher ... , it looks like glass in its surface and form a light SiO2 glass film which can protect the ... easily be broken.2.Support ClampSupport clamp are applied to &9/18 and &6/12 two kinds of elements respectively ... grade, 1800 grade. Packaging is available in U shape, W shape, Straight shape (X shape) and bend shape ( ...