... , Nitriding HardnessHRC50~55 Mould featuresAdvanced design, Logical structure, High precision, Qualified materials, Long lifetime, Short delivery time.Die ... ZL107. ProcessCasting, Deburring, Machining, Surface Treatment, Packing. Surface treatmentHigh quality polishing, Chrome/nickek/Zinc(white, blue, yellow, black)plating, ... Welcome to visit our company! Aluminium Die Casting for Auto Wheel