| 摘要 |
A method of forming a dual chamber seamless tube ( 64 ) includes providing a slug of steel ( 56 ) and cold working a first end ( 70 ) of the slug ( 56 ) to form a first chamber ( 114 ) and cold working a second end ( 72 ) of the slug ( 56 ) to form a second chamber ( 116 ). The first and second chambers ( 114 and 116 ) are axially aligned and separated by a wall portion ( 126 ) of the tube ( 64 ).
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