... 5.payment:T/T Professional processing and manufacturing of external gear grinding.Undertake 20crmnti material, 40cr material, 45 steel, ... modulus of 0.5-20, range 10-1500 gear diameter shaft.Equipment Status: Switzerland to Sri Lanka Hall nza300 ... machine, precision 6-7.Surface grinder, internal grinder, cylindrical grinder, precision lathes, and gear hobbing machine and so the whole system ...