This sort of product is manufactured and inspected according to national standards such as GB/T6402-91, JB4730-2000 and JB/T5000.8-1998. Our factory has abilities to make gear shafts of diameter less than 900mm, length less than 11.5m and per piece less than 20MT, with treatment including forging, forged hardening, machinery cutting, rough cutting and tempering. Samples and drawings are welcome.