Being one of the largest sensitive elements manufacturer in China mainland , Nanjing Shiheng corporation is a high&tech enterprise specializing in the production of a series of sensitive elements including negative temperature coefficient (NTC) thermistors, NTC sensors, positive temperature coefficient (PTC) thermitors and zinc oxide varistor . Founded in 2002, the corporation kept its good development tendency with a increasing sale volume by 30% per year. It has been passed the certification of ISO9001:2000 quality management system and ISO14001:2004 environment management system. The corporation has been awarded "High&tech enterprise in Nanjing city" ,"Private scientific enterprise in Nanjing city" , "Private scientific enterprise in Jiangsu province" and has many patents, many products have been awarded "High&tech product" As a project product of government , "MF51E 503F3950 NTC thermistor" financially aided by "Creation fund of ...[More]ific type medium and small-sized enterprise" of the Ministry of Science and Technology of China; "MF52 Pearl-shape Temp Measurement NTC thermistor" has been awarded as the national Torch Plan project . The corporation has modern standard workshops of 11000 m2 with the complete automatic production facilities , perfect special measuring and testing instruments and manufacture capacity of 800 million pieces sensitive elements annual. All the products are lead-free produced complianced with EU ROHS Regulationes. Major products have been certified by C-UL, UL and CQC. The products are widely applied in such fields as industrial electronic equipment, communication, electric power, transportation,medical apparatus, household applicances, testing instruments and power equipment etc.