ISO 7800 metalen materialen — Draad — Simple torsion test ISO 9649 metalen materialen — Draad — Reverse torsietest. ASTM A938 Standard Test Method for Torsion Testing of Wire GB/T 239.1, GB / T 239.2 metalen materialen — Wire - torsietest. Steel Wire Simple Torsion Testing Machine Application: The Electronic Wire Torsion Testing Machine is mainly used to test the anti-plastics deformation for metal …