We, Shandong dongyue Group Corp.are the largest manufacturer and exporter of refrigerant & Fluoride salt and PTFE in Asia. We have obtained ISO9002 and ISO14001 certificate. She includes SHANDONG DONGYUE CHEMICAL CO., LTD., SHANDONG DONGYUE QINGHUA NEW GREEN TECHNIQUE CO., LTD.,DONGYUE METAL STRUCTURE FACTORY,DONGYUE NEW TYPE BUILDINGMATERIALS FACTORY, DONGYUE QINGHUA NEW GREEN TECHNIQUE RESEARCH AND DEVELOPMENT CENTRE, DONGYUE SALES COMPANY,DONGYUE EXPORTING & IMPORTING COMPANY,ZIBO THUNDER WELDING MATERIAL CO.,LTD. and ZIBO IMPORT & EXPORT GROUP CORP. We shall be pleased to enter into business relations with you at an early date. Our products list as follow: Refrigerant:  R22 Chlorodifluoromethane R32 Difluoromethane  R152a Difluoroethane  R142b Chlorodifluoroethane Green Refrigerant:R418 Green Refrigerant:R415 R407c & R410a Fluoride Salt:  Ammonium Bifluoride  Sodium Bifluoride  Magnesium Fluosilicate Ammonium Fluosilicate  Ammonium Fluoride  Sodium Fluoride  Acids: Anhydrous Hydrogen Fluoride  Hydrofluoric Acid  Feedingstuff Addictives:  Dicalcium Phosphate  Blowing Agent: Azodicarbonamide (ADC)  Azobisisobutyronitrile(AIBN) 4,4'-Bis(chloromethyl)Biphenyl  Welding Electrodes: Type:J421(E6013),J502(E5003),J506(E7016), A102(E308-16),A132(E347-16),A202(E316-16),Cr55-10, Diameter:4.0/3.2/2.5mm Other: Polytetrafluoroethylene(PTFE) Furfuryl Alcohol Polyaluminium Chloride Polyacrylamide Aluminium Sulphate B.Regards/Genghao Shandong Dongyue Chemical Co.,ltd. Website:http://www.dongyuegroup.com http://www.dongyuechem.com Tel:0086-533-3586996 3586969 3581717 Fax:0086-533-3587000