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: Three layers of blow molding machinery can make 3layers/two/one layer of water tank by the same machinery All electrical components using SIEMENS brand name. Two pulling rods clamping structure with stable operation Two hydraulic stations by SERVO drive to acquire energy saving PLC touch screens(wall thickness and machinery operation touch) Head die with spiral flow channel design without weld point Pneumatic system has function of silencing