Metal Housing

Iron Parts
Iron is used in a wide range of applications and has a large worldwide content: more than more than 200 billion tons of proven iron ore storage have been available worldwide. There are two kinds of iron commonly used: hematite and magnetite.
Hematite
The composition of hematite is ferric oxide, dark red or steel gray, multi-use casting nails, screws, nuts, hammer head, machine parts and so on.
Magnetite
Magnetite is magnetic, also known as "iron suction stone", "Magnet", magnetite application range is not as wide as hematite, but also useful, magnetite can be shaped into magnets to identify objects.
Tin Parts
The application range of tin is not too wide, the common tin parts have canned bottle cap, tin paper, plastic bottle tin seal and so on.
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