Topkun Machinery is an ISO9001 Certified factory who specialized in manufacturing, developing and selling metering pump and chemical dosing system accessories in Shanghai, China,

Our Back pressure valves, Safety relief valves, Pulsation dampeners, Flow calibration columns, Y strainers etc. Are widely used in area of environmental protection, water treatment, electric power, pharmaceutical, chemical and other industries.
We are proud of our strong Technology R & D team to develop more and more new products with high quality to meet our different customers' different demand.

We are proud of our strong Management team and Production team, so we can offer our customers required products with unbeatable prices and short delivery time in the market.
We are proud of our strong sales team to receive such a good reputation among our customers due to their Professional and excellent customer service.