... model number:GCSF052 2.material:wearable steel 3.brand:Aoxin High Speed Screw BladeScope of applicationJinan JiaRuiDa Mechanical& Electrical Equipment Co.,Ltd ... Japan NSK bearings, NTN bearings, NACHI bearings, KOYO bearings, IKO needle roller bearing series, Sweden SKF bearings, Germany FAG bearings, INA ... user requirements and processing of other specifications of spiral vane . High Speed Screw Blade