铜开发协会和商品研究小组于10月15日在伦敦发起了为期一天的会议,专门研究铜市场的现状和前景。据会议参考资料透露,用超声波和激光焊接白铜和钢可谓之是非常新奇的,甚至是近乎一种科学的幻想。通过试验证明,在19毫米厚的钢板和2.29毫米厚的90/10白铜间 The Copper Development Association and the Commodity Research Group launched a one-day meeting in London on October 15 to study the status quo and prospects of the copper market. According to the conference reference material, the use of ultrasound and laser welding of white copper and steel can be described as very novel, or almost a science fantasy. It has been proved through experiments that there is a 19 mm thick steel plate and a 90/10 white copper with a thickness of 2.29 mm