... and temperaing, multiple to stress, hardening. Hardness is HRC62 after polishing Inner structure: single-layer, multi-layer screw, Z ... Brief, up to 750*6000mmProduct PictureEmbossing Roller1. 3D, laser engraving,special engraving.2. Emboss with paper roller or ... steel, alloy steel, stainless steel and others.Embossing roller, laser engravuring, 3D design and others technology.Mirror roller, Ra ...