The pumice comes from Italy; and the pigment which gives "the plug" its color is cadmiumsulfide.
浮石产自意大利，给“塞子”上色的颜料则是硫化铬。
2
The roasting dust which produced from zinc concentrate roasting process, main contains zinc oxide, zinc ferrite, zinc sulfide, cadmiumsulfide, lead sulfate etc.
该种焙烧烟尘的二次焙烧处理工艺存在着环境污染等一系列无法彻底解决的问题。
3
The catalyst consists of zinc-cadmiumsulfide, and has good visible light absorption performance and excellent activity of degrading organic pollutant by visible light.