The silver-tungsten and silver-nickel graphite concocts with high properties pre-sintered tungsten skeleton have been made through a lot of experiments.
通过大量试验，制成了高性能预烧钨骨架银钨触头和银镍石墨触头。
2
Common varieties are brass, copper, aluminum, low carbon steel, stainless steel, monel alloy, silver and nickel.
常用品种有黄铜、紫铜、铝、低碳钢、不锈钢、蒙乃尔合金、银、镍等。
3
Copper pans should be lined with silver, nickel, or tin.