Founded in 2004, Tianjin Ruiling Petroleum Equipment Co., ltd (hereinafter referred to as �TRPE�) is a Hi-Tech enterprise which develops, designs, manufactures, markets, services of land & offshore petroleum drilling equipments. As one of leading manufacturer of Top Drive Drilling System (TDS) products in China , TRPE have the registered capitals of RMB $30 million and have more than 300 employees, which our R & D and technical engineering employees account for 60% of the total number. Our 500 ton Top Drive Drilling System (TDS), which have held 6 china technical patents and passed API certification and are used on the offshore platforms of SINOPEC in China due to its high performance, reliable product qualities. TRPE dedicate to become the innovator of Top Drive Drilling Technology and industry leader of oil & gas drilling equipment. We can provide our customers with the highest quality TDS drilling products, a complete solution and its top-notch after-sale services.