Example structure for a material calloutThis is a callout structure, not an invented grade specification. Populate it with the actual approved product requirements.Example structure for a material calloutUse the released construction and agreed requirementsMaterial identityApproved supplier and exact grade.Core / bond systemThickness, resin construction and permitted alternatives.CopperStarting or finished basis, foil and relevant surfaceprofile.PropertiesMethod, conditions, units and typical or guaranteed basis.ApprovalRevision and review route for proposed substitutions.³Ô¹Ïtv · Engineering explanation · Conceptual, not to scale