... precision,Low noise 4OEM accepted 5Pass ISO9001:2008 Electric drill parts bevel gears in powder metallurgy Features: 1High density ... machine etc. 7 Power tool partsPower Tool parts for electric drill, electrical hammer, angel grinder, electrical saw, electrical blower, ... steel, copper molybdenum steel, alloy.4. Production equipment:a. Hydraulic press with 200T, 160T, 100T, 60T, 50T, 25T, 20T, 10T ...