Model Number: 3003061/62-A1S Brand Name: WRICH Key Specifications/Special Features: We are the only supplier of Changchun FAW in China.Closed die forging is no burr die forging, general in the forging process the clearance remains the same in upper die and lower die, blank around a closed molding mould chamber, do not produce horizontal burr, a small amount of extra material will be longitudinal fly, it in the subsequent process removed.Products advantages:Closed precision forging could reduce the cost, the manufacturing procedure and the processing personnel compare to the open-die forging, and it can’t appear fold skin phenomenon thereby reduce the rejection rate.There is a comparison of them in the lastpicture, please check, thanks.