1). Material: Silicone, EPDM, NR, NBR, SBR, CR, IR, IIR, FPM, and so on
2). Hardness: According to drawing or sample
3). Size: The same as drawing or sample.
4). Color: Black, gray, green, yellow, blue, red etc
5). Package: Inner in poly bags, outer packed in carton.
6). Function: dust-proof, oil-proof,etc
rubber bellow