Forged steel grinding balls 1)high hardness 2)good wear resistance 3)low breakage 4)even wearing Forged steel grinding ballsa) The material is high quality alloy steel material.b) The export quantity is 50,000-80,000 tons yearly.c)The certificate is TUV,ISO9001,SGS...

level pneumatic roll up paper machine 1 control way: pneumatic 2 driving way: shaft driving and seperate driving Level pneumatic roll up paper machine1 the machine is the first finishing device after paper machine.2 the paper rollleris driven by the rotation of the cold...