metal earphone mesh: 1,low cost, 2,best quality Etching precise component is produced by Shenzhen Vantech,we can produce various size according the cliets' demand,you can contact us if you're interested in ps: 1,Product thickness can be achieved between 0.03 to 1.5mm. 2,Product size can be achieved between 1* 1mm to 300* 500mm. 3,Smallest open hole is Ø 0.1mm. 4,Smallest line width is 0.025mm. 5, ...