Dongying Tianrui Petroleum Science & Technology Co., Ltd

Dongying Tianrui Petroleum Science & Technology co., ltd is located in Dongying city , Shandong province.Our company is a manufacturer of drlling equipments and OCTG pipes.In 2008,we successfully passed the ISO9001 Quality System Certification,In 2011,we had the right to use API Monogram on our products.Currently the company has two general offices and four manufacturing shops well-equipped with machining and inspection equipment, such as large scale pipe threading lathe, NC milling machine, NC lathe, engine lathe, miller, Drilling machine, sawing machine, mechanical disassembling equipment, ultrasonic detectors, thread gauges and so on.  
  After several years of technological breakthrough, we have developed several technical products which include The hydraulic ascension equipment, sea and hoisting device, open-window tools, packer, efficient sets of grinding milling tools, inclined shaft tools , drilling and completion tools. They had a good result in sites and got users' trust.