... 1.metal gears:iron stainless steel 2.OEM powder metallurgy planetary gears 1.metal gears:iron stainless steel 2.Size:1 ... .Small module,complexity4.OEM,Non-standardmaterialsizesteel,iron,304,316,45#,15#,A3,FN0208.SMF5020 >1mm,<90mm HENGKO LTD is specialized in ... .HENGKO Powder Metallurgy gear includes: bevel gear, gear, gear box, planetary gear, gear sector, sun gear, straight helical gear, helical gear ...