1. Liancheng Group – Leading Chinese manufacturer of non-negative pressure water supply equipment with strong market presence. Produces adjustable tank type and stable flow type systems for various applications. ISO certified with comprehensive product range. Website: [Contact via industry channels] -6

  2. Shanghai Weihu Pump – Shanghai-based manufacturer specializing in water supply equipment and pumping systems for residential and commercial buildings. Advanced control systems and energy-efficient design. Website: http://www.weihupump.com -6

  3. Guangzhou Quanyi Pump – Produces non-negative pressure water supply equipment with intelligent control for stable water pressure in high-rise buildings and industrial facilities. Website: http://www.quanyipump.com -6

  4. Zhejiang Southern-Lights Pump – Manufacturer of water supply systems with focus on energy efficiency and reliable performance. Serves residential, commercial, and manufacturing applications. Website: http://www.southernlights-pump.com -6

  5. Sanyang Water Supply Equipment – Specializes in intelligent variable frequency water supply systems with non-negative pressure technology. Suitable for residential communities and commercial complexes. Website: http://www.sanyangwater.com -6

  6. Yingtong Water Supply – Produces constant pressure water supply equipment with advanced control systems for stable operation. Serves municipal and industrial applications. Website: http://www.yingtongwater.com -6

  7. Shenyang Yuanlong – Manufacturer of non-negative pressure water supply equipment with strong presence in northern China. Offers adjustable tank type and stable flow type systems. Website: http://www.yuanlongwater.com -6

  8. ZC Industrial – Produces intelligent water supply systems with non-negative pressure technology for various applications including manufacturing and commercial buildings. Website: http://www.zcindustrial.com -6

  9. Sanli Group – Manufacturer of water supply equipment with comprehensive product line serving multiple industries. Focus on reliability and energy efficiency. Website: http://www.sanligroup.com -6

  10. Zhejiang Wod Valve – Specializes in water supply systems and related components with strong engineering capabilities. Serves both domestic and international markets. Website: http://www.wodvalve.com