Material: manganese steel 

Processing technology: wire cutting or CNC processing, heat treatment

High quality manganese steel material, high strength, good quality, prolong the service life.

Adopt wire cutting or CNC processing,  the shape of the Block is standard, no welding, the quality of the mold is Very good and Durable, the service life is long.

Heat treatment (carburizing treatment), a layer of high strength protective layer on the surface stroke, hardness greatly improved, wear resistance greatly strengthened, yes prolong the service life by 50%.