... Z), SGCD (DX52D+Z) 3) Surface finish: regular spangle and zero spangle4) Thickness: 0.13-4.5mm 5 ... and industrial buildings Surface chromated, oiled,unoiled, zero spangle,small spangle ,regularspangle, large spangle,tension leveled,flat surface,matt surface ... steel tape Surface chromated, oiled,unoiled, zero spangle,small spangle ,regularspangle, large spangle,tension leveled,flat surface,matt surface ...