... simple and convenient maintenance Gaofu toothed roll coal crushing machine for coalDescription:GF series multistage teeth roll crusher, especially suitable for the ... 1. GF series teeth roll crusher have three series: 2 PG, 4 PG, 6 PG, one machine can complete the thick, ... remove adhering material of the machine chamber wall.Working Principle:GF series multistage teeth roll crusher use single or more ...