Established in 1981, Shanghai Yilian Control Temperature Apparatus Factory is a professional manufacturer of different glass and other material instruments. Our products mainly include densitometers, hydrometers, thermometers, medical instruments, experimental instruments, glass instruments, meters and microscopic carvings. We have 4 series and over 40 products with over 1,000 specifications which are sold well in the domestic market with reliable quality and reasonable prices. Meanwhile, we are developing our overseas markets. If you are interested in any of our products, please feel free to contact us for further information. We are looking forward to hearing from you in the near future.