... 1.Wet powder briquette 2.ISO9001 quality 3. 20 years professinal experience 4 Full range servie ISO9001 Qulity Approval ... chemical, coal and refractory industries, suitable for wet powder briquetting, which is adding an appropriate amount of ... sludge, gypsum, carbon, coal powder, coking coal, coke powder, aluminum powder, silicon carbide, copper powder, iron powder and various refractory materials. ...