... , Roller Shell, Ring Forging, Gears, Gear Blank, Gear Shaft, Gear Wheel. 2. Materials: Carbon steel, Alloy steel 3.Supplying range: Shafts ... : 100% ultrasonic test according to EN10228-3, SA388, Sep 1921 C/c etc. Heat Treatment Report: provide original copy of heat treatment ... . Working Site:12. Products13. Packing & Delivery14. Company Certificate Helical Gear Product