1.Carbon Steel Solid Output Shaft Martial 2.Mobil SHC643 Synthetic Lubrication 3.ISO9001,CE and CCC certifications WPA worm and worm gear speed reducer's Features: 1.widely used in turbines, shaft liners and axletrees;good resistance to wear, with high precision in dimensions,low noise, advanced centric running castings. 2.With air vent and high precision. 3.The structure is compact and the ...