... Save work force and power 4,Easy maitain and operate Clay briquetting machine (1~40ton/h capacity)This machine is mainly ... used in coal podwer, coal slurry, clay dust ,midding coal, coke powder, coking coal, metallurgical powder and ... : Two rollers and single pressure/Four rollers double pressureBall shape: round, pillow-shaped, oblate, ova-shaped,diamondBall size:30~60mm1.Please ...