Tianjin Shengli Petroleum Equipment Co., Ltd. is mainly engaged in the business of top drive maintenance, technical service, rental, spare part supply and technical training. Top drive service brand "Cruiser" which is created in 2000, has become one of the strongest top drive service brands and is well-known at home and abroad. Now our company is the top drive service provider for CNPC and Sinopec. We have developed more than 30 service projects in China and many countries and regions around the world, such as Sichuan, Shanxi, Shandong, Nigeria, Sudan, Saudi Arabia, Yemen, Iraq, Ecuador and Colombia. We have domestic maintenance bases in Tianjin and Xinjiang, international maintenance bases in Saudi Arabia and Ecuador, and four stations of spare parts in Huston, Saudi Arabia, Ecuador and Shandong. We have the top drive test devices invented by ourselves, and they can be applied to all types of top drive systems for testing. For many years, we have successfully contracted with more than 50 sets of top drive maintenance projects, covering top drive of Varco, Canrig, Tesco, MH, BOMCO, BPM, etc. We pay great attention to international management systems and enterprise culture development. In April, 2005, we successfully passed the verification of API and were granted with Certifications of API Spec Q1 and ISO9001. We are also dedicated to the cultivating and inspiriting system for talents, building up a cultural environment of Honesty, Humanity, Respect and Gratitude. We have established an integrated management system, including information system, technology reserve system, maintenance and service system, spare part supply system and after-sales service system, and have developed to be a professional top drive service provider. Adhering to the principle of "Customer First, Standard Management, Technical Innovation, and Continuous Improvement", we sincerely provide our customers with comprehensive top drive technical services.