... heating treatment and mechanical processing, hardness is HRC55~58. Advanced heat treatment process of quenching and temperaing, multiple to ... Product NameProduct Brief, up to 750*6000mmProduct PictureEmbossing Roller1. 3D, laser engraving,special engraving.2. Emboss with paper ... , stainless steel and others.Embossing roller, laser engravuring, 3D design and others technology.Mirror roller, Ra is up ...