Auxiliary tool for electric welding construction

The auxiliary tool for the electric welding construction comprises a helmet and a mask connected between the outer walls of the two ends of the helmet in a rotating mode, a mounting groove is formed between the inner wall and the outer wall of the circumference of the mask, and a glass lens is fixed...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	WANG ZHENCHENG, ZHOU XIUPENG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	HATS HEAD COVERINGS HEADWEAR HUMAN NECESSITIES
Online-Zugang:	Volltext bestellen
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