selling sodium sulphide, barite, barium sulphate

ear Sir or Madam:

we are longfu-group,Qinba Barium Salts Factory,we produce the sodium sulfide flake , which is widely used in the leather tanning, ore flotation, minerals and metallurgy.

and we are a supplier of barite in china too, self-owned barite ore, produce the barite powder API 13A Grade, barium sulfate precipitated , used as the weighting agent in the drilling mud, as the auxiliary in the copper metallurgy ,and as the filler materials of rubber, plastic, paper-making and paint,co