… of material, by laser or other light or photon beam, ultrasonic, electro-discharge, electro-chemical, electron …
Explanatory notes
… of material, by laser or other light or photon beam, ultrasonic, electro‑discharge, electro‑chemical, electron … other light or photon beam processes 8456.20 ‑ Operated by ultrasonic processes 8456.30 ‑ Operated by electro‑discharge …