S8281 M48 flange plate 0.1-1mm, 9 specifications of stainless steel flange gasket, astronomical deep space photography

S8281 is made of stainless steel material
Thickness: 0.1, 0.15, 0.2, 0.3, 0.4, 0.5, 0.6, 0.8, 1.0
9 pieces in total
Can be stacked for use
Inner diameter: 48mm, outer diameter: 55mm