... industry advantage ,we specialize in RD , manufacturing processing gear .more than 5000 varieties of products for 200 models ... gear, Spline shaft,spiral bevel gear,pots angel gear, rear axle gear, worm gear etc. The products cover iron steel castings and a ... drilling machines, hobbing machine, Slotting machine, ladder gear machine, internal and external grinder.Laser marking machine etc.the produce ...