we are manufacturer of carbon black in china. we have grades: N220 N234 N326 N330 N339 N375 N550 N660 N772 N774 and so on

physical and chemical property:
white hexangular crystal or powder, odorless, non-toxic and fine, relative density is 5.606, refractive index is 2.008-2.029 , melting point is....

we are manufactuer of caustic soda in china. we have capacity of 100000 metric tons. we have grades: 96% 98% 99% . shapes: caustic soda flake, caustic soda pearl, solid caustic....