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A skeleton aperfeicoada for articulation esferica, in the form of a vase
A skeleton aperfeicoada for articulation esferica, in the form of a vase
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机译:用于花瓶的衔接埃斯菲里卡的骨架开孔器
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摘要
An improved method for forming a cup-shaped ball joint socket by using a blank provided with a neck portion of reduced outer diameter from which an outwardly directed collar is formed; and the cup-shaped ball joint socket resulting from practicing the improved method.
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