Screw top tins are common for spice containers. The lids are made of tinplated steel and typically have six holes punched in them to release the spice. Then another cap goes on top. But screw top tins come in all shapes and sizes and can used as packaging for many other products as well. Food, pharma or cosmetic items are widely packaged this way. Here are points to know about the strength and reliability of screw top tins.
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