B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
B21B—ROLLING OF METAL
B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
B21B27/06—Lubricating, cooling or heating rolls
B21B27/10—Lubricating, cooling or heating rolls externally
B—PERFORMING OPERATIONS; TRANSPORTING
B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
B21B—ROLLING OF METAL
B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
B21B45/0239—Lubricating
B21B45/0245—Lubricating devices
B21B45/0248—Lubricating devices using liquid lubricants, e.g. for sections, for tubes
B21B45/0251—Lubricating devices using liquid lubricants, e.g. for sections, for tubes for strips, sheets, or plates