10020000.5value= "3" unitname= "mm" w:st= "on">-3.0mm0.5value= "1.5" unitname= "mm" w:st= "on">-1.5mm0.8value= "3" unitname= "mm" w:st= "on">-3.0mm4590t 

The high quality, high air tightness, high strength and convenient installation of the ventilation ducts of the company have won the unanimous praise of new and old customers. The ventilation pipe is also applied in CHENHONG technology, Zhengxin tire, Tianma microelectronics, garbage power plant, Xiamen airport, Benz plant, new energy group and other engineering examples. It is deeply loved by users because of its advanced technology, excellent quality, standardization, good interchangeability, easy installation and low price 

  “ Sen Sheng never stops serving you &rdquo focus on providing a more powerful guarantee for a healthier and environmentally friendly working environment and living environment