Metric O-ring kits comprised of non-metal O-rings of various sizes for use as connection seals; O-shape rings; O-rings; O-rings being joint packing for pipes; Non-metal o-rings for sorting machines and packaging machines; O-rings for sorting machines and packaging machines; O-rings of metal for sorting machines and packaging machines; Shock absorbing rubber buffers for industrial machinery; Silicone rubber; Fluoro rubber; Nitrile rubber; Oil seals; Oil seals, not of metal; Fittings, not of me...