... , slag, gypsum, tailings, sludge, kaolin, activated carbon, coke breeze and many other powder or dregs into small balls. Warmly welcome in following ... /hZQ350ARD430430mm15KW1000-1500 kg/hZQ400AFeatures of coal powder briquette machine : Wide usage for different refractory powder and metal powder High ball-forming rate, low power ...