Shanghai Quntong Spray Packing Material Co., Ltd. was established in 2002. We are one of the biggest manufacturer of metering valves in China. The head office of company is located in Shanghai Pudong New Area and adjacent to Shanghai Pudong international airport. At present, we have 3 own factories in 3 different cities: Shanghai, Nantong and Zhongshan, 7 automatic production lines for 1 inch valve, 2 automatic lines for 20mm valve, 2 automatic lines for portable gas stove valve and 1 production line for fire extinguisher valve. Besides, we have several semi-auto lines for special valves.