... Zn alloy 3. ISO9001:2008 compliant Dongguan Quality LED Bulb Aluminum HousingDie Casting, Die Casting Mould, Die casting ... widely welcome on global markets.Dongguan Quality led bulb aluminum housing Die Casting PartsModel No. ... standardLKM, HASCO, DMEHeat treatmentHardening, NitridingFeaturesAdvanced design, High precision, Quality materials, Long lifetime, Quick deliveryEquipmentsCNC precision mould ...