Material pressing structure for preventing skylight opening base material from lacking material

The utility model discloses a material pressing structure for preventing skylight opening base materials from lacking materials, which comprises an upper die and is characterized in that a spring sleeve is arranged on the upper die, a plug screw and a spring are assembled in the spring sleeve, an ej...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	YUE JIHUA, MA RENJI, LI WU, DONG SHUANGLONG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CUTTING DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING,CUTTING-OUT, STAMPING-OUT OR SEVERING HAND CUTTING TOOLS PERFORMING OPERATIONS SEVERING TRANSPORTING
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