Shandong Lango Metering pump Technology Co.Ltd , mainly engaged in developing, producing and selling metering pump products . The company has accumulated rich experience in the production of metering pumps with advanced technology. Widely apply in the water purification industry, sewage treatment industry , pharmaceutical industry , chemical industry, packaging industry, electroplating industry, building refrigeration system and other industries . Mainly products: Electromagnetic Diaphragm metering pump Mechanical diaphragm metering pup Micro diaphragm metering pump Can OEM, ODM , R&D