hard solder

1. In some cases it may be necessary to connect metal surfaces by means of a hard spelter solder which fuses at hight temperature.
   某些情况下有必要用一种高熔融温度的强锌焊料来连接金属表面。
2. The hard solder of noncrystalline and nonsilver copper base is a new one prepared by a new method of metallurgy.
   非晶态铜基无银钎焊料是利用新的冶金手段制备的一种新型钎焊料。
3. Silver-based brazing filler metals is the most important and typical hard solder, which has been widely used for brazing low-carbon steel, stainless steel, copper and copper alloys, high temperature alloy and refrigeration industry.
   目前，银基钎料是最重要、最具代表性的硬钎料，广泛应用于低碳钢、不锈钢、铜及铜合金、高温合金及制冷行业中的钎焊。

noun

1. solder that contains copper