... in our company. 3. Main Specifications of Precision Casting Parts ProcessLost wax casting(Silica ... machine, linear cutting machine, NC milling machine, polishing machine.Heat treatmentAnnealing/Tempering/Normalizing/Solid solution.Testing facilityspectrometer, tensile test machine, hardness test machine ... , Products with much patents5, 17 years experience of mechanical seal6, ISO90017, We accept O/A ...