Lead, copper, gold, silver
Aluminum, copper
Brass, iron
Tantalum, tin
Titanium, nickel
Metal raw materials: copper, silver, aluminum
Aluminum, steel
Raw mterials like: sus301, sus304, copper, aluminum, etc
Stainless steel, brass, aluminum
Tin and nickel
PCB material, such as fr4 , aluminum base, copper base, solder, etc.
Steel, brass
Aluminium, copper
Copper, aluminum
Raw iron & copper
Manganese , nickel, chrome, titanium, vandaium
Copper, aluminum
Iron silver copper
Steel product, iron
Steel and brass