What are the conventional colors of foam in Rogers Well?

Conventional colors of foam in Rogers Well are black and gray. Among them, black is more common, such as PORON ShockPad series, PORON 4701 series and many other products are available in black, and the color code is usually 04. Gray Rogers inoue foam such as PORON SlimGrip foam material, its standard color is gray, and the color code is 90.