the first soft metal layer and the second soft metal layer are made of tin alloy or lead alloy.
第一软金属层和第二软金属层采用锡合金或铅合金材料。
so it has much significance to apply modern processes and technologies to the production of tin alloy artware in china, for that is to improve its quality and develop its production capacity.
因此,将现代成形技术应用于锡工艺品的生产制造,对于提高产品质量和扩大生产规模具有重要意义。
new cathode and anode materials, such as low cost iron phosphate and lithium tin alloy systems, offer potential for significantly improved performance.