DC auto air conditioner 1.Plastic injection 2.ISO9001:2008 3. ... steel,etc.Heat treatmentHardened,NitridingHardnessHRC50~55Mould featureAdvanced design, Novel structure, High precision, Quality materials, Long lifetime, Short delivery timeEquipmentCNC precision mould ... technique on die castingTeamUnited and positive teamPlastic injection parts for DC auto air conditioner. dc auto air conditioner