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import cadquery as cq
w0=cq.Workplane('ZX',origin=(0,-24,0))
r=w0.sketch().push([(61,-7)]).circle(39).circle(16,mode='s').finalize().extrude(-56).union(w0.sketch().arc((-81,-10),(-96,-41),(-63,-32)).arc((-7,32),(-81,-10)).assemble().finalize().extrude(105))