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5. Shaoxing Applied Chemistry Research Institute specialized in applied chemistry.Particularly,new development and applications have been made about surfactant,auxiliary and fine chemicals
6. Shijiazhuang Hualai Petroliferous Additive Co,Ltd produces hydrolytic polyacrylonitrile-ammonium salt, ploymer filter loss educing agent ST-598, and drilling fluid filter loss redrcing agent HLS-101.
9. Zhejiang Brothers Industry Development Co. series product of Black Silicon Carbide,Brown Aluminum Oxide,White Aluminum Oxide.Engineering ceramic and senior Refractory