2021
2019
2018
2017
2016

-2021*

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5 Elem Hi-Tech Corporation China
Aciselsan Acipayam Seluloz Sanayi Ve Ticaret AS Turkey
ALPHA-SAFETY, / KAZAKHSTAN
AMICO GAS POWER CO., LTD. China
Anhui Jucheng Fine Chemicals Co., Ltd. China
ANHUI TIANRUN Chemicals Co., Ltd. China
ANPING GUANGMING METAL PRODUCTS CO.,LTD China
ANPING SHENGJIA HARDWARE MESH CO., LTD / CHINA
APA-Kandt GmbH Germany
Armano Messtechnik GmbH Germany/Germany
ARTVIK, INC / UNITED STATES OF AMERICA
ATRISAU Applied Technology Research Institute China
B&R / RUSSIAN FEDERATION
Baoji Baohao Petroleum Machinery Equipment Co., Ltd. China
BAUER KOMPRESSOREN GmbH /
BEIJING FJR OPTO-ELECTRONIC TECH.Co.,LTD China
Beijing HTWB Petroleum Technology Co., Ltd China
BEIJING POWER INTERNATIONAL EXHIBITION CO., LTD (BEIJING) / CHINA
Borsig GmbH Germany
Cangzhou HaoGuan Pipe Fittings Flange Manufacturing Co., Ltd. China
CANGZHOU LONGTAIDI PIPE TECHNOLOGY CO., LTD. China
Cangzhou Ruitai Petroleum Machinery Co., Ltd. China
Cangzhou Zhongshun Steel Pipe Trade Co., Ltd China
Changsha Taihe Electronic Equipm. Co.Ltd China
Chengdu Chenggao Valve Co., Ltd. China
Chengdu Minjang Precision Cutting Tool Co., Ltd. China
China Electronics Technology Group Corporation China
China Innovation Petroleum Union Exhibition(CIPUE) China
China Petroleum Technology & Development Corporation (CPTDC) China
CN-OILSNAB CO.,LTD China
CNPC HUABEI PETROLEUM FEIDA CO., LTD. China
CNPC Logging Company Limited China
ContiTech Rubber Industrial Ltd. Germany/Hungary
CRRC Yongji Electric Co., Ltd. China
Dalian Haixin Chemical Co., Ltd. China
DeZhou Horizon Oil Technology Co., Ltd. China
DEZHOUBORUPETROLEUMMACHINERYCO.,LTD China
DezhouUnitedPetroleum Technology Co., Ltd. China
DHG Enterprise Service GbR Germany
DRAEGER / GERMANY
DRILLTECH MANUFACTURING CO.,LTD. China
Dtaic Pipeline Inspection Equipment (Suzhou) Co., Ltd China
ENERPAC B.V. / NETHERLANDS
Enotec GmbH Germany
ETIREX - CHROMALOX / RUSSIAN FEDERATION
Every Industry LLC USA
EVETRON / RUSSIAN FEDERATION
Evonik Nutrition & Care GmbH Germany
Flow Technologies Trade Fairs Germany
Flüssiggas-Anlagen GmbH Germany
Fujian Kunfu Stock Co., Ltd. China
Fujian Wanlong Superhard Material Technology Co.,Ltd China
GAOYOU HUAXING PETROLEUM PIPE MANUFACTURE CO., LTD China
GMC-I Messtechnik GmbH Germany
Grande-Tek Flow Control Co., Ltd. China
Guanghan N & D Carbide Co., Ltd China
GUANGZHOU GU-POWER TECHNOLOGY CO.LTD / CHINA
GUANGZHOU JST SEALS TECHNOLOGY CO.,LTD / CHINA
H. BUTTING GmbH & Co. KG Germany
Haimo Technologies Group Corp. China
HAMRIYAH FREE ZONE AUTHORITY / UNITED ARAB EMIRATES
Harbin aisheng intelligent technology development Co., LTD China
Hebei Ahad Tubeline Co., Ltd. China
Hebei Boxing Petrochemical Equipment Co., Ltd. China
Hebei GN Solids Control Co., Ltd. China
Hebei Haihao Group Saitong Pipeline Equipment Co., Ltd. China
HEBEI HAIHAO GROUP STEEL PIPE ENGINEERING CO., LTD China
Hebei Hengying Wire Cloth Co., Ltd. China
HEBEI HITECK MACHINERY EQUIPMENT CO.,LTD China
HEBEI JIALANG OIL DRILLING EQUIPM.Co.Ltd China
Hebei Jingbo Petroleum Machinery Co.,Ltd China
Hebei Jinsheng Pipe Fitting Manufacturing Co. Ltd China
Hebei Minhai Pipe Fitting Co., Ltd. China
Hebei Ruishi Bits Manufacturing Co., Ltd China
Hebei Wentai Metal Mesh Co., Ltd China
Hebei XinHuaFa Petroleum Mechanical Manufacturer Co., Ltd China
Henan Chicheng Electric Co., Ltd China
HENAN DEMALONG FILTRATION EQUIPM. CO.LTD China
Henan SF DIAMOND CO.,LTD. China
Henan Yalong Diamond Tools Co.,Ltd China
Hilong Group Of Companies China
HISTRONG CERAMICS LIMITED China
HONGHUA GROUP Co. Ltd. China
Hubei Hongyi Electronic Science & Technology Co., Ltd. China
HUBEI JIAYE PETRO-MACHINERY CORP. China
HUBEI XINGFA CHEMICALS GROUP CO.,LTD China
HYDR-STAR FLUID CONTROL COMPANY LIMITED China
INNERICA / RUSSIAN FEDERATION
IPCO Germany GmbH Germany
JIANGSU CHANGBAO STEEL TUBE LIMITED CO. China
JIANGSU RUDONG LIANFENG PETROLEUM MACHINERY CO.,LTD. China
Jiangsu Saifu Petrol Machinery Co., Ltd. China
JIANGSU SUNKAIER INDUSTRIAL TECH.Co.,LTD China
JIANGSU TAISHUN ENERGY TECHNOLOGY DEVELOPMENT CO.,LTD China
JiangsuRushiMachineryCo.,Ltd China
JiangsuRutongPetro-MachineryCO., LTD China
Jiangyin Shiming Steel Tube Co. Ltd. China
JiangyinYangziFittingCo.,Ltd. China
Jiashan Huanqiu Mechanical Seal Factory Co., Ltd. China
JINAN KAIXIANG PETROLEUM MACHINERY EQUIPMENT CO., LTD China
JinanLongchaoPetroleum Machinery Co., Ltd China
JINANXINYUCEMENTEDCARBIDECO.,LTD China
JINING FORTUNE BIOTECH CO., LTD. China
JUMO GmbH & Co. KG Germany
KANEX Krohne Anlagen Export GmbH Germany
KERUI GROUP /
KES Energy Equipment Manufacturing Hebei China
Klaus Union GmbH&Co.KG
Klöpper-Therm Vertriebs GmbH Germany
KNF Neuberger GmbH Germany
Laizhou Rising Star Artificial Lift Co. Ltd. China
Lake Petro Co., Ltd. China
Landoil Chemical Group Co., Ltd. China
Leistritz Pumpen GmbH Germany
Leobersdorfer Maschinenfabrik GmbH Austria
Liangzheng Valve Co., Ltd China
Lishui Ouyi Valve Co., Ltd. China
Lokring Northern UK Ltd. Great Britain
Luohe Letone Hydraulics Technology Co., Ltd. China
LUOYANG REASTAR TRANSMISSION CO.,LTD. China
M&C TechGroup Rus, LLC / , / RUSSIAN FEDERATION
Mankenberg GmbH Germany
Manotherm Pribor, OOO Germany/Germany
müller quadax GmbH Germany
Munger International Petroleum Equipmet Co., Ltd. China
NANYANG CISK PETRO-MACHINERY CO., LTD China
NATIONAL ELECTRIC , / KOREA, REPUBLIC
New Century Machinery Co., Ltd. China
NEWAY VALVE (SUZHOU) CO., LTD. China
Ningbo Chuangxing Intelligent Transmission Co., Ltd. China
NINGBO JAZZY IMP&EXP CO.,LTD. China
NINGBO OURSOLID COMPOSITE MATERIAL CO., LTD. China
NSI / BELGIUM
OLI RUSSIA / ITALY
Orient Corporation Pte. Ltd. Singapore
Oviko Group Co. Ltd. China
Panjin Liaohe Oilfield Tianyi Petroleum Equipment Co., Ltd. China
Pietro Fiorentini S.p.A.
Pleuger Industries GmbH Germany
PROBUS Maschinenbau GmbH Germany
Puyang sanli integrity oil Equipment Co., LTD China
PuYang ZhongYuan Restar Petroleum Equipment Co., Ltd. China
Qingdao Bitop Trading Co., Ltd. China
Qingdao Hady Industrial Co., Ltd China
Qingdao Oceanview Chemical Co., Ltd. China
QINGDAO SINGHO MACHINERY CO., LTD China
Rädlinger primus line GmbH Germany
RAMCRO S.P.A. / ITALY
Rays Flow Control, Inc. China
Resato International B.V. Netherlands
RG Petro Machinery Group Co., Ltd. China
Rongsheng Machinery Manufacture ltd of Huabei Oilfield, Hebei China
Rongye Group Co., Ltd. China
Roper, LLC /, /
Sailuoke Fluid Equipment Inc. China
Samson Controls OOO Germany/Germany
Seed Technologies Corp., Ltd. China
Senben Lighting Technology Inc. Company China
SHANDONG HUANING ELECTRIC HEATING TECHNOLOGY CO.,LTD. China
Shandong Mingzhu Petroleum Equipment Co. Ltd China
Shandong Ruihai Investment Co.,Ltd China
Shandong Sanyi Industrial Co., Ltd. China
Shandong Shanfang Electromagnetic Drive Technology Co., LTD China
Shandong silicon new materials Co., LTD. China
SHANDONG WELLDONE ENVIRONMENTAL NEW MATERIALS CO., LTD China
Shandong Wintech Technology Co., Ltd. China
Shandong Zhongjie Pressure Equipment Co., Ltd. China
Shanghai I&G Co., Ltd China
Shanghai OCHS Internat. Trade Co., LTD China
SHANGHAI ZHAOHUI PRESSURE APPARATUS CO., Ltd. China
Shanxi Donghuang Wind Power Flange Manufacturing Co., Ltd. China
Shanxi Fenglei Drilling Tools Co., Ltd. China
Shanxi Guanli Flange Co., Ltd. China
Shanxi Guanxin Forging Co., Ltd. China
Shijiazhuang DiBo Petroleum Machinery Co., Ltd. China
SHINDA(TangShan) Creative Oil & Gas Equipment Co China
Shlangenz LLC /
Shuttle International Logistics LLC
SI CHUAN YONG GUI TECHNOLOGY CO.LTD China
Sichuan Kexin Oilland Internat.Co., Ltd. China
Sichuan Kunlun Petroleum Equipment Manufacturing Co.,Ltd. China
SICHUAN OILMAN MACHINERY CO., LTD China
Sichuan Vacorda Instruments Manufacturer Co., Ltd. China
SIEMENS / GERMANY
Sinosteel Stainless Steel Pipe Technology (Shanxi) Co., Ltd. China
SLC / RUSSIAN FEDERATION
SOLCO PYROELEC RUS LTD , / KOREA, REPUBLIC
Soloon Electronics (Beijing) Co., Ltd. China
Sorb XT Germany
SUNLEEM Technology Incorporated Company China
Suzhou Dafang Special Vehicle Co.,Ltd China
SuzhouOntopMechanical &ElectricalEquipmentCo.,Ltd. China
TAIRIKU TRADING CO., LTD / JAPAN
Teji Valve Group Co., Ltd. China
TIANJIN NITHONS TECHNOLOGY CO.,LTD China
Tianjin Pumps & Machinery Group Co., Ltd. China
TIANJIN SHIHONG PIPELINE CO.,LTD China
TMS RUS,OOO / RUSSIAN FEDERATION
TREVISAN MACCHINE UTENSILI S.P.A. / ITALY
UNIFY / RUSSIAN FEDERATION
UNIKA UNIVERSAL KABLO SAN VE TIC. A.S / TURKEY
VEGA Grieshaber KG Germany
VITZROCELL CO., LTD , / KOREA, REPUBLIC
VULCANIC SAS / FRANCE
WALTHER-PRÄZISION Carl Kurt Walther GmbH & Co. KG Germany
Weidmüller Interface GmbH & Co. KG Germany
WENZHOU FUJI VALVE CO., LTD China
Wuhan Linmei Head Plate Co., Ltd China
Wuhu Jiahong New Material Co., Ltd China
WUXI BEILAI PIPE CO.,LTD. China
Wuxi Hengtong Petrolic Machinery Co., Ltd. China
Xiamen Beryllium Copper Technologies Co. China
Xi'an Kosun Machinery Co., Ltd. China
Xi'an Tiptop Machinery CO., LTD. China
Yada Pipeline System Co., Ltd. China
Yantai Jereh Oilfield Services Group Co. Ltd. China
Zhejiang Boutique Valve Co., Ltd. China
Zhejiang Dewei Stainless Steel Pipe Industry Co., Ltd. China
Zhejiang Lanfeng Machine Co. Ltd. China
ZHEJIANG OUMING FLUID CASTING Industry Co., Ltd. China
Zhejiang Tormin Electrical Co., Ltd. China
Zhejiang Zhenxing Petrochemical Machinery Co. Ltd. China
Zhengzhou Jinshi Machinery Co., Ltd. China
Zhengzhou New Asia Superhard Material Composite Co. Ltd. China
Zibo Hailan Chemical Co. Ltd. China
Zibo Hongrun New Material Co., Ltd. China
Zigong Cemented Carbide Co. Ltd.(ZGCC) China
Zigong Zhongxing Wear-resistant New Materials Co., Ltd. China

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