Metallic Materials
Aluminum  (Al)0.8-2mm
Chromium  (Cr)2-6mm
Copper  (Cu)Φ2-3mmx2-4mm
Germanium  (Ge)Φ1-3mmx2-4mm
Nickel  (Ni)Φ5x5mm
Silicon  (Si)1~4mm
Tin  (Sn)1~4mm
Titanium  (Ti)3~6mm