1, Material grade:GB,AISI/ASTM,JIS.DIN17440/DIN17007 etc. 2, Finish code :ZLPL.NIPL 3, Material:copper,aluminum,alloy,ss. All the ... drawings;3. Quality assurance: To ensure precise standard for material and technique, before running ,we would like to provide ... tooling, if need;4. Quanlity control: In house, coming inspection, first off, spotcheck in processing, final inspection, 100% inspection for ...