... is 6 rows boring, the second one is four rows boring, it can fulfill full automatic loading, stacking, and boring process, is ... processing.Technology plan:Technical data:host 6 rows in the front drill, and 4 rows in the back drill processing dimensions800*2400mmspeed8times/minNo. of horizontal ... machine8200*4600*1700 2012 row drilling line KB407/6 rows in the front drill, and 4 rows in the back drill