Qinhuangdao Shi Ji Yuan Water Treatment Technology Co., Ltd is a Hi-Tech company specializing in environmental protection incorporated in National Qinhuangdao Economic & Technologic Development Zone and has been dedicated to water treatment undertaking for more than ten years.
   Shi Ji Yuan products have been playing an important role in fluid filed and cover a wide range of industries.。
   Double intelligent pressure differential filter is our company’s patented core product; we aim to become the world leading water filter product provider and challenge high fineness to create miracles in filter industry with internationally-advanced technology.     
   Currently, double intelligent pressure differential filter has go into mass production, which breaks away from production order mode, to ensure that quality-assured products are delivered to users within shortest time.