Yida Environmental Protection Technology Co., Ltd. is located in Nanjing City, Jiangsu Province,China. The company was founded in 1999. Yida was committed to the development and production all kinds of metallic substrates for TWC/DOC/SCR/VOC catalysts. Our company's current production capacity is 18 million pieces/year, which is the largest metallic substrates manufacturer in China. Yida has formed its own unique technology advantages in metallic honeycomb substrate for various catalyst applications, and Yida has independent intellectual property rights and multiple product technology patents.