... -2004,GB/T6892-20006) Oxide film:AA10,UM10;AA≥15,UM≥15.7) Fineworkmanship,Goodcurvature,Goodglossiness,Goodappearance,Solidity, strong in corrosion ... resistance8) Die making time:10-15 days.9) Outer diameter:within 200mm.10) Ep paper ... ,office partition wall,folding screen ,fence ,various kinds of frame,display rack,goods rack ,mechanical dust-proof seal cover,etc ...