EDTA-4Na 四水合物广泛用于水处理、纺织印染、日化洗涤、油田、造纸、感光冲洗、橡胶合成等领域，实现硬水软化、阻垢、脱色、金属离子屏蔽、体系稳定化处理。

We are Xi'an Waverley Environmental Control Technology Co. Ltd Located in the historic city of Xi'an. Is a modern high-tech enterprise, integrating R&D, production and sales. We have joint a R&D center with Xi’an Petroleum University and Northwestern Polytechnical University. We have obtained certificates for ISO9001, ISO14001, and ISO 45001 management systems, and many authorized patents. We specialize in various oilfield chemicals covering drilling, cementing, fracturing, oil & gas extraction, gathering, and processing. Our main products include defoamers, foam agents, demulsifiers, desulfurizers, scale inhibitors and other reagents. We also provide supporting technical services ,includ Integrated Intelligent Foam Drainage Injection Technical Service, Plunger lift Technical Service, Sour Gas Lift Service for Adjacent Wells ,Wellhead Odor Removal Technical Service and so on. We are committed to providing Intelligent Gas Recovery, Intelligent dosing, Intelligent downhole, Intelligent Desulfurization, Intelligent station and associated equipment. With an annual production capacity of 40,000 tons and independent import-export rights, our business has covered Southeast Asia, Central Asia, the Middle East, South America, South Africa, and Russia. Since the establishment, we have always been adhering to the management philosophy of science and technology as the driving force. Quality for survival, innovation for development, wholeheartedly for the customers and partners to provide the best quality products and technical services.