... polished,beautiful,light,sound abatement,abrasion resisrance. The Perforated Metal Sheets ∩ Material: Stainless steel, Carbon steel ... CNC Perforating Machine and Etch Tiny Machine ∩ Application: Perforated material is widely use as agriculture equipment, audio, ... noise control, pharmaceutical, filtration, etc. ∩ Delivery: The perforated metal sheets are delivered by EMS, express company, the ...