ZHONGZHENG Machine Co.,Ltd (ZZmachine) is a manufactory which located at Wenzhou, Zhejiang, the southeast coast of China since 2003, which is a factory-company mainly focuses on production and providing of fuel dispenser and its directly relevant parts. All basic products refers to 5 catalogues which are:1.Big flow-rate Diesel dispenser and Safety Ex-proof Unit Petrol Dispenser2.All series of Nozzle, including automatic nozzle, measuring nozzle and steel-stainless nozzle3.Petrol-feed Pump and Other relevant Product4.Fluid Transfer Mesurement, flow-meter with high accuracy and its relevant product5.Dispenser-used motors with ex-proof Unit6.other relevant changable accessories such as swivel, valve, cover, filter etc.