factory equipment we own for producing blades all is the most advanced in China, over 200 meters heat treated auto roller line imported from Korea, 

will cause more than 1000 KWH when it preheat. After heat treated, the blades can get excellent "through hardened", the core and surface hardness deviation is less than 5HRC, 

we use high speed multiple drilling& punching machine, to make precision bolt hole and space from other holes.

And perfect managment, 47 workers, special person in every process, seven techician for test and inpect products...all that make our production cost is not the lowest.

Besides, our parent company is a professional steel suppliers in Shandong province over 20 years, this year we also sold 420000 tons steel plates until now, so we have more reliable 

material resource and can get the most cheapest price, original mill certificate can be provided in each piece of material.