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In ancient near eastern times, people used cylinder seals as a type of signiture for documents. The cylinder seal was made of clay or rock and had reliefs carved into them.
The purpose of a cylinder seal is to write signatures in early times.
In the early period in Ancient Mesopotamia, they were used for picture story. At the later period, they were used for Signatures.
Brake wheel cylinder or axle sealBrake wheel cylinder or axle seal
They are used to seal motors or machines and rotatin pump shaft or hydraulic cylinder pistons.
The head gasket is used to seal between the engine cylinder head and the engine block
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a seal (i.e seal) between the cylinder and the head on a car
The 15XT has a built in seal.
It is the Cylinder.
Apply a finish to the Aluminum alloy cylinder. Recommend an annodize treatment. Another alternative is to install a bronze ring under the seal, if possible.
it was used to sign important documents so that they would not have to write their name they could just stamp it