Metal injection molding are widely used in the True Wireless Stereo(TWS) industry owing to fast processing time,elimination of second operation and fine tolerance of final parts. The end use of TWS industry is hinger of bluetooth earphone and earphone shell like bellow. #metalinjectonmolding#mim#truewirelessstereo If you want to learn more, pls browse www.worldmim.com My email address is joanna@yibitech.com