Our enterprise since its inception, usually regards product top quality as business life, repeatedly enhance manufacturing technology, make improvements to product excellent and continuously strengthen enterprise total high quality administration, in strict accordance with all the national standard ISO 9001:2000 for China Dyeing, Potassium Hydroxide Corrosive , HS CODE 20301090 , Sodium Penta Sulphide ,sulfure de sodium hydraté . We will empower people by communicating and listening, Setting an example to others and learning from experience. The product will supply to all over the world, such as Europe, America, Australia,moldova , Indonesia ,Angola , Croatia .We've been adhering to the philosophy of attracting customers with the best items and excellent service. We welcome customers, business associations and friends from all parts of the world to contact us and seek cooperation for mutual benefits.