Professional direction, Total:15 items.
In the international standard classification, Professional direction involves: Welding, brazing and soldering, Vocabularies, Valves, Woodworking equipment.
direction, slice direction, research direction, Research direction, direction, field direction, slice direction, test direction, technical direction, Medical Direction, Professional direction, Detection direction, guide direction, opposite direction, Detection direction, haze direction, Spectral direction, time direction, astronomical direction, Professional direction.
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