... most competitive price advantage and quantity advantage.Material: stainless steel, iron ( SPCC, SECC, SPTE), aluminum alloy, red copper, brass are availabledesign : ... sets, CNC punch machine 6 sets.Manufacturing capabilities include assembly, powder coating, laser cutting, CNC punching/forming, rotary bending, stamping, ... our company.our products show below: double fan filter unit made by sheet metal