Electric system: 1.The electric control system uses siemens(germany) and mitsubishi(japan).Plc computer control system with touch screen control board. 2.The low-voltage electrical apparatus comes from siemens(germany), and schneider(france). Features of blow molding machinery: Lthree layers of blow molding machinery can make two/one layer of water tank by the same machinery L all electrical components using siemens brand name. Ltwo pulling rods clamping structure with stable operation Lplc touch screens(wall thickness and machinery operation touch) Lhead die with spiral flow channel design without weld point L pneumatic system has function of silencing