Our company since its inception, always regards product quality as enterprise life, continuously improve production technology, improve product quality and continuously strengthen enterprise total quality management, in strict accordance with the national standard ISO 9001:2000 for Sodium Sulphide 60% Yellow And Red Flakes, White Caustic , Barium Sulphate for plastic , Sodium Hydrogen Sulphide Formula ,Drate hydroxide NaOH . Any needs from you'll be paid out with our best notice! The product will supply to all over the world, such as Europe, America, Australia,Bangladesh , Surabaya ,Finland , Rwanda .Good quality and reasonable price are our business principles. If you are interested in our products or have any questions, make sure you feel free to contact us. We hope to establish cooperative relationships with you in the near future.