Aluminum Foil, Heat Shrinkable Tube, Aluminum Case manufacturer / supplier in China, offering 34.4mm Coil Diameter Screw on Titanium Diaphragm Hf Compression Driver (DE-3409TS), 51.6mm Coil Diameter Screw on 1 3/8 Titanium Diaphragm Compression Driver (DE-5108TS), 34.4mm Coil Diameter Screw on Titanium Diaphragm Ferrite Hf Compression Driver (DE-3408TS) and so on.