Drilling muds; Chemical additives for drilling muds; Chemical additives for oil well drilling fluids

Bearings, as parts of machines; Centrifugal pumps; Filters for motors and engines; Heat exchangers being parts of machines; Lubrication machines; Mechanical seals; Pump diaphragms; Pumps for machines; Shaft couplings for machines; Taps being parts of machines, engines or motors

Root canal cement used by dentists

METALLIC BUTTERFLY VALVES