◆ Steel: 1.4 thick cold-rolled steel plate; 

◆ Welding edge: double seam welding, to ensure rugged; 

◆ Plating: plating level in 7 or more, the thickness of 12 - 15um or so; 

◆ Aperture: optional 5.5mm, 6.3mm, 6.5mm, 7.0mm, 7.3mm, 7.5mm; 

◆ Punching number: 36 holes or 72 holes; 

◆ Surface color: optional ion gold-plated, seven-color; 

◆ Painting Color: Optional Red Orange Yellow Green White Black Blue Purple