Set of 18pcs fileter ring adapters of different sizes. - Set of 18pcs fileter ring adapters of different sizes: 37-49-52-55-58-62-67-72-77-82-77-72-67-62-58-55-52-49-37mm. Adopted with aviation aluminum alloy, which is with high strength, impact resistance, twist and pressure, durable and lasting for use.
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