OS-NBR-2-3/4×3-3/4×7/16
OS-FKM-5/16×3/4×1/4
OS-NBR-3×3-3/4×3/8
OS-NBR-3/8×3/4×1/4
OS-NBR-3/8×1×1/4
OS-NBR-7/16×5/8×1/8
OS-NBR-7/16×0.836×3/16
OS-NBR-3-1/4×4×3/8
OS-NBR-3-1/4×4-1/4×3/8
OS-NBR-3-1/4×4-1/4×7/16