... treatment:chrome plating; 3 quantity of ball:4 pcs High quality zinc lock cylinder1.Ningbo Junhua machinery co.,ltd is ... price to our customers for getting their market. Itemhigh quality zinc lock cylinderDie casting machineThere are 6 cold chamber ... etc;Inspection equipmentThree-coordinates measuring machine,Hardness-testing device,spectrum analyzer;MaterialADC 12,a356,A380,YL102,AlSi9Cu3, AlSi12 etc ...