... , according to customer's own design perforated metal mesh speaker grill:1. Product thickness : 0.03 mm ~ 1.5mm. ... thickness.6. Product quantity: 4000 square meters per month.The grill material we can process includes: Stainless steel (including 301, ... steel plate, aluminum, nickel, magnetic material and so on.The main technologies include precise etching, precise stamping, precise mechanic processing ...