[ Technological Teaching Aids, Technological Scientific Treatises on Screw-Calculations, ] Precision Measurement Devices for Machinery Construction-i.e., Devices for Precision Measurement of Screws, Nuts and Screw Connections

Screws, Bolts, Nuts

SCREWS, LOCK NUTS AND OTHER FASTENING MEANS MADE OF METAL AS SECURITY SCREWS, SECURITY LOCK NUTS AND SEMIFINISHED FORGINGS