We have been experienced manufacturer. Wining the majority of the crucial certifications of its market for Helium Periodic Table Symbol, Hydrogen, Hydrogen Sulphide H2s, Trisulfur Hexafluoride,Ethylene Oxide Eto. All the time, we have been paying attention on all details to insure each product satisfied by our customers. The product will supply to all over the world, such as Europe, America, Australia,Thailand, Leicester,Jamaica, Kenya.Our monthly output is more than 5000pcs. We have set up a strict quality control system. Please feel free to contact us for further information. We hope that we can establish long-term business relationships with you and carry out business on a mutually beneficial basis. We are and will be always trying our best to serve you.