Cylinder joinings; Elastomeric expansion and contraction joint seals for use in building, bridges, roadways, parking structures and open-air structures; General purpose silicone rubber sealant; Metric O-ring kits comprised of non-metal O-rings of various sizes for use as connection seals; Non-metal sealing rings for use as connection seals; Rings of rubber for use as pipe connection seals; Rubber seals for jars; Sealing and insulating materials; Sealing plugs made primarily from rubber; Ureth...