这些企业的名单如下：

　　1st Machinery Works of North China Petroleum

　　3H (Shanghai) Petroleum Equipment Co., Ltd.

　　ABB Vetco Gray Petroleum Equipment (Shanghai) Co., Ltd.

　　Anhui Tunxi High Pressure Valve Factory

　　Anshan Aotong Steel Pipe Plant

　　Anshan Dragon Pipe Industries Co., Ltd.

　　Baoji Oilfield Machinery Co., Ltd.

　　Baoji Petroleum Steel Pipe Co., Ltd.

　　Baoji Rigor Petroleum Machinery Co. Ltd.

　　Baoji-SMI Petroleum Steel Pipe Corporation

　　Baoyi Valve Group Co., Ltd.

　　Beijing Petroleum Machinery Factory

　　Beric-Davis Companies International, Ltd.

　　Beric-Davis Companies International, Ltd.

　　Bohai NKK Drill Pipe Co., Ltd.

　　Bohai Oil Engineering Company

　　Boteli Valve Group Co., Ltd.

　　Cangzhou OCTG Co., Ltd. of Huabei Oilfield

　　Cangzhou Xinyuantai Steel Pipe Mill Co., Ltd.

　　Changge Yulong Pipe Products Co., Ltd.

　　Changqing Petroleum Exploration Bureau Machinery Manufacture Plant

　　Changshu Jichang Petroleum Machinery Manufacturing Co., Ltd.

　　Chengde Kingdream Petroleum Machinery Co. Ltd.

　　Chengdu Best Diamond Bit Co. Ltd.

　　Chengdu Chengfeng Valve Co., Ltd.

　　Chengdu Chuankong Valve Co., Ltd.

　　Chengdu High Pressure Valve Plant

　　Chengdu Mechanical Works of Sichuan Petroleum Administration

　　China Gaoneng Valve Co., Ltd.

　　China KCM Valve Co., Ltd.

　　China Liangjing Group Co., Ltd

　　China Oilfield Services Limited

　　China Shiyuan Valve Manufacturing Co., Ltd.

　　China South Valve Group Manufacture Co., Ltd.

　　China Sungo Valves Co., Ltd.

　　China Tefulong Group Co., Ltd.

　　China Zhongquan Group Co., Ltd.

　　China-Jiangnan Valve Co., Ltd

　　Chiwan Sembawang Engineering Co. Ltd.

　　Chongqing Xin Tai Machinery Ltd.

　　Chuannan Machinery Manufacturing Plant

　　Chuanyou Guanghan Honghua Co. Ltd.

　　Da Feng Valve Plant

　　Dagang Oilfield Group New Century Machinery Manufacturing Co., Ltd.

　　Dalian DV Valve Co., Ltd.

　　Dalian Marine Valve Factory

　　Daqing Honggang Drilling Tool Factory

　　Daqing Petroleum Equipment Group

　　Daqing Rijiu Centralizer Plant

　　Deyang Huadi Petroleum Equipment Co., Ltd.

　　Drilling & Production Equipment Plant of Sichuan Petroleum Administration

　　Drilling Engineering Technology Research Institute of Daqing Petroleum Administration Bureau

　　Drilling Technology Research Institute, Shengli Petroleum Administrative Bureau, SINOPEC

　　Drilling Tool Sub-company of Daqing Drilling Technology Services Company

　　Enflow Industries Inc.

　　Fenghua City High-Middle Pressure Valves Manufacture Co., Ltd.

　　Fenghua Hengtong Valves Co. Ltd

　　Fujian Sanming High & Middle Pressure Valve Factory

　　Fushun Cement Co. Ltd.

　　Gaoyou Huaxing Petroleum Manufacturing Co., Ltd.

　　General Machinery Plant of Shengli Petroleum Administration

　　Gezhouba Holding Company Cement Plant

　　Great Valve Manufacturing Co., Ltd.

　　Guanghan Petroleum Well-Control Equipment Co., Ltd.

　　Guangzhou Panyu District Dongsu Machinery Co., Ltd.

　　GuiZhou GaoFeng Machinery Factory

　　Guizhou Wire Rope Incorporated Company

　　Hangzhou Donghua Chain General Factory

　　Hebei Cangzhou Hengtong Tubing Co. Ltd

　　Heibei Zhongyuan Steel Pipe Manufacture Co., Ltd.

　　Heilongjiang North Shuangjia Drilling Tools Co., Ltd.

　　Henan Gaoshan Valve Co., Ltd.

　　Henan Petroleum Exploration Bureau Machinery Plant

　　Henan Shangdie Valve Co., Ltd.

　　Henan Zhongyuan Special Steel Works

　　Henan Zyzj Petroleum Equipment Co., Ltd.

　　Hubei Fuxing Science and Technology Co., Ltd.

　　Hunan Hengyang Steel Tube (Group) Co. Ltd.

　　Inner Mongolia No. 1 Machinery (Group) Co., Ltd.

　　Integrated Equipment, Inc.

　　Jiang Yin Eastern Valve Company, Ltd.

　　Jianghan Petroleum Machinery Plant

　　Jiangsu Chang-Bao Steel Tube Limited Co.

　　Jiangsu Chengde Steel Tube Share Co. Ltd.

　　Jiangsu Huaneng Cable Co., Ltd.

　　Jiangsu Jin Shi Machinery Group Co., Ltd.

　　Jiangsu Rudong General Machinery Company Limited

　　Jiangsu Rushi Machinery Co. Ltd

　　Jiangsu Shuguang Drilling Tool Co., LTD.

　　Jiangsu Shuguang Grant Prideco Tubular Co., Ltd.

　　Jiangsu Suyan Valve & Pipe Plant

　　Jiangsu Xianzhong Petroleum Machinery Co., Ltd.

　　Jiangsu Xinxiang Share Co., Ltd.

　　Jiangsu Yulong Steel Pipe Co., Ltd.

　　Jiangyin Chuangxin Oil Pipe Company Ltd.

　　Jiangyin Xingcheng Special Steel Works Co., Ltd.

　　Jianhu County Hongda Valve & Pipe Co., Ltd.

　　Jingbo Petroleum Machinery Plant

　　Jinxi Steel Pipe Co. Ltd of Lingyuan Iron and Steel Group

　　Jiyuan Petroleum Machinery Co., Ltd

　　Ju Long Steel Pipe Co. Ltd.

　　JUN Valve (Kunshan) Co., Ltd.

　　KF Industries, Inc.

　　Kingdom Precision Casting Co., Ltd.

　　KingDream Public Limited Company

　　KingDream Public Ltd Company Shanghai Branch

　　KTM Ball Valve Manufacturing (Sichuan) Co., Ltd.

　　Kunshan AB Valve Co. Ltd.

　　Kunshan Valve Co., Ltd.

　　Lanzhou General Machinery Plant

　　Lanzhou High Pressure Valve Limited Company

　　Lanzhou LS-National Oilwell Petroleum Engineering Company Limited

　　Lanzhou Petroleum & Chemical Machinery Works

　　Lianyungang Ocean Liquid Loading & Unloading Machine Co., Ltd.

　　Liaohe Oilfield General Machine Factory

　　Liaoning Dongyu Oil Pipe Manufacturing Co., Ltd.

　　Liaoning Jinxi (ASP) Steel Pipe Co. Ltd.

　　Liaoyang Spiral and Straight Seam Steel Tube Factory

　　Liaoyang Steel Tube Co., Ltd.

　　Liaoyang Xingde Large Steel Pipe Plant

　　Machinery Factory of Jilin Petroleum Group Co., Ltd.

　　Machinery Factory of Tuha Petroleum Exploration and Development Corporation

　　Machinery Factory of Tuha Petroleum Exploration and Development Corporation

　　MSP/Drilex

　　Mudanjiang City Oriental Diamond Bits Co., Ltd.

　　Mudanjiang Construction Material Petroleum Machinery Plant

　　Mudanjiang Petroleum Machinery Co., Ltd.

　　Mudanjiang Petroleum Tools Co., Ltd.

　　Mudanjiang Zhongyuan Drilling Co., Ltd.

　　Nanjing Luzhou Machine Works

　　Nantong Colves Fluid Control Co., Ltd.

　　Nantong High & Medium Pressure Valve Factory

　　Nantong Wire Rope (Group) Co., Ltd.

　　Nanyang Petroleum Machine Plant

　　Neway Valve (Suzhou) Co., Ltd.

　　Ningbo Mayer Steel Pipe Ltd.

　　Ningbo Sanding Steel Pipe Engineering Co., Ltd.

　　Ningxia Hengli Steel Wire Rope Co., Ltd.

　　Norms Engineering Co., Ltd.

　　North China Petroleum Steel Pipe Co. Ltd.

　　Northern Steel Pipe Co., Ltd.

　　Offshore Oil Engineering Co., Ltd.

　　Oil Well Cement Development Company, Zibo Zhongchang Special Cement Co, Ltd

　　Outong Group Co., Ltd. (Zhejiang Petrochemistry Valve Co., Ltd.)

　　P.T. Kvaerner Oilfield Products

　　Pangang Group Beihai Steel Pipe Corporation

　　Pangang Group Chengdu Iron & Steel Co., Ltd.

　　Panyu Chukong Steel Pipe Co., Ltd.

　　Power Machinery Works of Shengli Petroleum Administration

　　Precision Pipe Manufacturing Branch of Liaoning Tianyi Industry Co. Ltd.

　　Puyang City Shuangfa Industry Co., Ltd.

　　Puyang Zhongshi Group Co., Ltd.

　　Rongsheng Machinery Manufacture Ltd of Huabei Oilfield, Hebei

　　Sanmenxia Xinghe Petroleum Equipment Manufacture Co., Ltd.

　　Seamless Pipe Plant of Angang New Iron & Steel Co., Ltd., Angang Group Co.

　　Seamless Tube Mill of Baotou Steel Union Co., Ltd.

　　Shandong Huayin Special Cement Co. Ltd.

　　Shandong Longkou Special Rubber Hose Co., Ltd.

　　Shandong Molong Petroleum Machinery Co., Ltd.

　　Shanghai KVC Valve Co., Ltd.

　　Shanghai (Jinji Group) Jinji Valve Piping Mfg. Co., Ltd.

　　Shanghai Alison Steel Pipe Co., Ltd.

　　Shanghai Dalong Chains Works

　　Shanghai Fudi Valve Co., Ltd.

　　Shanghai Gaoneng High Pressure Valve Factory

　　Shanghai Huatong Valve Co., Ltd.

　　Shanghai Jinlun Mechanical Industry Co., Ltd.

　　Shanghai Kai-gong Valve Co., Ltd.

　　Shanghai Koko Valve Co., Ltd.

　　Shanghai Liang Gong Valve Factory

　　Shanghai Lixing Valve Manufacture Factory

　　Shanghai Meilong Valve Co.

　　Shanghai Neles-Jamesbury Valve Co., Ltd.

　　Shanghai Pudong Hanwei Valve Co., Ltd. (Shanghai Hanwei Special Valve Manufacturing Co., Ltd.)

　　Shanghai Shen Kai Petroleum & Chemical Equipment Co., Ltd.

　　Shanghai Source Mechanical & Electrical Equipment Co. Ltd.

　　Shanghai Third Navigation ASP Steel Pipe Co, Ltd.

　　Shanghai Valve Factory

　　Shanghai Zhongye Steel Pipe Co., Ltd.

　　Shanxi Fenglei Machinery Manufacturing Co. Ltd

　　Shanxi Norin Petroleum Machinery Co. Ltd.

　　Shashi Steel Pipe Works

　　Shashi Steel Pipe Works Fiberglass Reinforced Plastic Plant

　　Shengli Steel Pipe Co. Ltd.

　　Shengli-Highland Co., Ltd.

　　Shenjiang Valve Co., Ltd.

　　Shenyang Shengshi High and Medium Pressure Valve Co., Ltd.

　　Shenzhen Weisheng I.T.S. Petroleum Tubular & Equipment Co., Ltd.

　　Shijiazhuang Jiahua Special Cement Co., Ltd.

　　Si Chuan Huijian Petrochemical Equipment Co., Ltd.

　　Sichuan Chuanshi Chrida Diamond Bit Co., Ltd.

　　Sichuan Chuanshi Diamond Bit Co., Ltd.

　　Sichuan Huagong Petroleum Steel Pipe Co., Ltd.

　　Sichuan Jiahua Enterprise (Group) Co. Ltd.

　　Sichuan Kaitz Valve Mfg. Co., Ltd.

　　Sichuan Keycon Valve Manufacturing Co., Ltd.

　　Sichuan Petroleum Coring Center

　　Sichuan Petroleum Perforating Materials Ltd.

　　Sino-American Shanghai Pacific Pipe Co., Ltd.

　　Sinopec National Star Corporation Dezhou Petroleum Machinery Factory

　　Siping Wantong Steel - Pipe Company Limited

　　SJ Petroleum Machinery Co.

　　South China Marine Machinery Plant

　　Sow Long (Valve & Fitting) Co., Ltd. (Long Cheng Valves Co., Ltd.)

　　Special Vehicle Repairing and Manufacturing Plant

　　Steel Pipe Factory of Pipeline Bureau, CNPC

　　Steel Rope Factory of AnGang Group Co., Ltd.

　　Steel Tube Factory of China Third Metallurgical Construction Corp.

　　Steel Tube Subcompany Bao Shan Iron & Steel Co., Ltd.

　　Suzhou High & Medium Pressure Valve Factory

　　Suzhou KF Valve Co., Ltd.

　　Suzhou Valve Factory

　　Taixing Petroleum Machinery Co., Ltd.

　　Tekval Flow Control (Suzhou) Co., Ltd.

　　The Drilling Pipe & Tools Service Company of Shengli Oilfield

　　The Thermal Recovery Equipment Manufactory of Shengli General Engineering…

　　Tianjin Grant TPCO Drilling Tools Co., Ltd.

　　Tianjin Huafu Oilfield Chemicals Co., Ltd.

　　Tianjin Lida Steel Tube Plant

　　Tianjin Lilin Mechanical Group Co. Ltd.

　　Tianjin Pipe Company Ltd.

　　Tianjin Seamless Steel Pipe Plant

　　Tianjin Shengkai Industrial Technology Development Co., Ltd.

　　Tianjin Shenzhoutong Steel Pipe Co., Ltd

　　Tianjin Shuangjie Steel Pipe Co., Ltd.

　　Tianjin Tubular Goods Machining Co. Ltd.

　　Tieling Machinery & Equipment Manufacturing Co., Ltd of CNPC

　　Tonghua City DN Petroleum Machine Co., Ltd.

　　Tonghua Petroleum & Chemical Machinery Works Ltd.

　　Tonghua Petroleum Tools Co. Ltd.

　　TSC (Qingdao) Manufacturing Co., Ltd.

　　United Offshore Construction Company, CONHW

　　Universal Wire Rope Co., Ltd.

　　Wan Chi Steel Pipe (Qinhuangdao) Co., Ltd.

　　Wenzhou Huanqiu Valve Manufacturing Co., Ltd.

　　Wenzhou Tingyu Group Co., Ltd.

　　Wuhan Boiler Group Valve Co., Ltd. (Wuhan Advanced Flow Control & Engineering Ltd.)

　　Wuxi Erquan Special Steel Tube Co., Ltd.

　　Wuxi Huaying Valve Manufacturing Co., Ltd.

　　Wuxi Seamless Oil Pipe Co., Ltd.

　　Wuxi Seamless Steel Tube Co. Ltd.

　　Wuxi Universal Steel Rope Co., Ltd.

　　Wuxi Xishan Valve Plant

　　Xi'an Pump-Valve Clique Works

　　Xian Yang Petroleum Steel Tube & Wire Rope Co. Ltd

　　Xinjiang Petro Administration Bureau Machinery Manufacture General Company

　　Xinjiang Qingsong Cement Co., Ltd.

　　Xinjiang Tianshan Cement Co. Ltd.

　　Xinjiang Tunhe Cement Co., Ltd.

　　Xuzhou Guanghuan Steel Tube Co. Ltd.

　　Xuzhou Pipeline Tech Co. of SPSTC

　　Yancheng City Shuangxin Petroleum Machinery Plant

　　Yancheng City Xinde Petroleum Machinery Plant

　　Yancheng City Yancheng Power Station Valve Factory

　　Yancheng High & Medium Pressure Valve Factory

　　Yancheng Jiulong Valve Manufacture Co. Ltd.

　　Yancheng Sanyi Petrochemical Machinery Co., Ltd.

　　Yancheng Teda Petroleum Machinery Company Ltd.

　　Yancheng Tongshang Valve Co., Ltd.

　　Yancheng Yangbiao Petroleum Machinery Plant

　　Yangzhou Shuangliang Valve Manufacturing Co., Ltd.

　　Yangzhou Steel Pipe Works

　　Yantai Lubao Steel Tube Duty Co., Ltd.

　　Yichun Feilong Rock Bits Manufacture Co., Ltd.

　　Yongjia County Oubei Ball Valve Factory

　　Yumen Petroleum Administrative Bureau Machine Plant

　　Zhangjiakou Exploration Machinery General Factory

　　Zhe Jiang High & Medium Pressure Valve Plant

　　Zhe Jiang Wu Zhou Valve Co., Ltd.

　　Zhejiang Chaoda Valve Co., Ltd.

　　Zhejiang Fangyuan Valve Manufacturing Co., Ltd.

　　Zhejiang Fangzheng Valve Factory

　　Zhejiang Guoda Valve Co., Ltd.

　　Zhejiang Huadong Valve Co., Ltd. (Haigong Valve Factory of Zhejiang)

　　Zhejiang Huatai Valve Manufacturing Co., Ltd.

　　Zhejiang Jiehua Valve Co., Ltd.

　　Zhejiang Kingland Group Pipe Industry Co., Ltd.

　　Zhejiang KVT Valve Manufacturing Co., Ltd.

　　Zhejiang Shangyu Valve Manufacture Co., Ltd.

　　Zhejiang Weidouli Valves Manufacturing Co., Ltd.

　　Zhejiang Xinda Electric Power Steel Tube Co., Ltd.

　　Zhejiang Xinhai Valve Manufacture Co., Ltd.

　　Zhejiang Xulong Machinery Industry Co., Ltd.

　　Zhejiang Zhenghua Valve Factory

　　Zhengmao Group Co., Ltd.

　　Zhengzhou City Butterfly Valve Factory

　　Zhongcheng Machinery Manufacture Co., Ltd. of Dagang Oilfield Group

　　Zhongnan Equipment Company Ltd. (The State-Owned 388th Factory)

　　Zhongshan Walchamp Steel Pipe Co., Ltd.

　　Zhongyuan Drill & Production Equipment Plant of Zhongyuan P.E. Bureau

　　Zibo Hongyang Petroleum Equipment Co., Ltd.

　　Zigong High Pressure Valve Co., Ltd.

　　Ziyang Steel Pipe Plant

　　截止2007.4.24，中国API认证企业达580家，数量居全球第一。