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# weather and climate metrology
# Cutting threads on the lathe
# Shaping threads with a lathe
# Connect with screws
# Screw
# thumbscrew
# Production of spirals Manufacturing of rotating spirals
# Spiral gauge
# surviving spirals
# Drilling turret spirals
# short spirals
# screwdriver
# ratchet screwdriver
# Portable electric screwdriver
# threaded shaft
# Threaded lining tubes
# threaded screw
# threaded hook
# Two-threaded cross-screw
# metrology
