... . Materials : stainless steel, iron ( SPCC, SECC, SPTE, tinplate), aluminum alloy, red copper, brass, bronze alloy are available.2. surface treatments are available ... A MaterialStainless steel, iron ( SPCC, SECC, SPTE, tinplate), aluminum alloy, red copper, brass, bronze alloy are available.B Workmanship for manufacturingCNC Laser ...