... seal, medical rubber seal, etc. Description of ACM/ FLS/ MVQ Electrical Cable Seal:1. Materials: ACM, also can be NR, HNBR, Buna ... special products.4. Size tolerance: exactly upon your request or standard tolerance.5. Color: black, transparent, grey, purple, pink, green, red ... rings in stock now, includes all of the standard size and many non-standard size.12. Production lead time: 1~2 weeks ...