Lost-Wax casting part = Needle nose pliers

This is also known as precision casting.  The steps of producing lost-wax casting part,

1. Mould making
2. Pour molten wax into mold
3. Slurrying
            4. Burnout to remove wax
            5. Pour melted metal into sand mold
           6. Hammered away the sand
           7. Polishing(done)

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material: Structural Carbon Steel A36 Process: flame cutting, face milling, outline machining, drilling and tapping. black oxide, assembling 火焰切割、銑、鑽、攻、染黑、組裝

pliers