China Tower Crane 19 38 99 Teeth Pinion Gear Small Nickel Brass Gears, Find details about China Tower Crane Pinion, Construction Pinion from Tower Crane 19 38 99 Teeth Pinion Gear Small Nickel Brass Gears
The products are according to the followlng technical parameters .Raw material control:
1.The steel material selected 100 % comes from our natlonal large-scalesteel corporations .
2.The critical materials that steel,welding material etc are all examedby chemical detection ,
then They are allowed into workshop for batch production.
3.Strictly conforms to drawing requirements, we make the products with16 Manganese,
40 Chromium and 45#steel etc .
4,Every parts of our products that pins ,axles,sleeves etc are strictly obey quenching and temperin procedures
5,Every parts of our products strictly conforms to the procedure requirements : mill ,plane, polish, press ,test etc in turn.
6,As for have finished products ,we perform the requirements of the ISO9001 Quality System and national standard strictly.