supplying tungsten assembly parts tungsten foil, sheets, plates, discs, squares, ribbons. With very ... five cold rolling machines, .BESEEM can supply vacuum annealed tungsten assembly parts and molybdenum(tzm, mo-la) foil, sheets, plates, discs, ... very good performance, these material are used to produce tungsten and molybdenum electrode, heating elements,heat shield, sintering trays, sintering boats ...