Steel claw on phosphorus iron ring with a hammer or pressure to that of the steel talons.

钢爪上的磷铁环用锤击或压脱使之与钢爪分离。

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The court was shown videos of the boys with a claw hammer, climbing on roofs, throwing missiles, urinating in public, spitting and jumping on a car.

BBC: News | UK | Court brands youths 'anti-social'

David Stupart, 28, and brother Graham, 32, armed themselves with a claw hammer and knife before going to a Dundee home and demanding the return of the TV set.

BBC: Brothers jailed for 'vicious' Dundee attack