Tungsten filament:Application: Vacuum coatingChemical Composition: Tungsten 3N5Tungsten filaments, made of tungsten wires, have high melting point ans good corros...
Tungsten Carbide Flat Top Button and Insert for Oil Cone Drill Bits
Customized Drawing accepted; Various Shaps and Size OK.
Tungsten Carbdie Button is widely used in petr...