Hebei Tangnai Technology Co., Ltd. is a professional manufacturer of filler masterbatch, plastic additives, color masterbatch, with 30 years of production. The company covers 90 acres, with a total investment of 100 million yuan and annual production capacity exceeding 200,000 tons. Main products include transparent sodium sulfate filler, defoamer, optical brightener,and more. We focus on stable quality, innovation, environmental protection, and long-term cooperation with customers worldwide.