A continuous, seamless, copper tube having a mass in excess of 500 kilograms formed by an extrusion process and at an extrusion temperature of approximately 750 degrees Celsius.
申请公布号
US6655415(B2)
申请公布日期
2003.12.02
申请号
US20020086622
申请日期
2002.03.04
申请人
BWE LIMITED
发明人
DAWSON JOHN;HAWKES DANIEL JOHN;JONES PHILLIP A.;LAIDLOW STEPHEN JAMES
