Dc Axial Fan 40X40X20,Mini Battery Dc Fan,Handheld Air Cooling Fan,Dc Main Machine Cooling Fan Crown Electronics CO., LTD , https://www.crownelectronicstw.comCopper 45550 UP 300 Tin 4985 DOWN 200 Lead 32725 DOWN 450 Zinc 567225 DOWN 2650 Aluminum 542925 DOWN 3150 Nickel 10134 DOWN 120 Aluminum DOWN 60 North American Special Aluminum 113240 UP 280