Model:;B-20
Material;Zinc Alloy
Diameter:20mm
Thickness:10mm
Model:;B-30
Material;Zinc Alloy
Diameter:30mm
Thickness:15mm
Model:;B-40
Material;Zinc Alloy
Diameter:40mm
Thickness:20mm
Model:;B-50
Material;Zinc Alloy
Diameter:50mm
Thickness:25mm
Model:;B-60
Material;Zinc Alloy
Diameter:60mm
Thickness:30mm
Model:;B-80
Material;Zinc Alloy
Diameter:80mm
Thickness:40mm