Tianhe Petroleum Machinery Co.,Ltd is a modinized medium-scale enterprice specialied in production of oil and gas tools. Established in 1973, it has been a standardized co.,Itd. Our company has registered captial 50million RMB,covering 150000 squaremeters. Main products are drill collar,spiral drill collar,heavy weight drill pipe, kelly, hydraulic jar tester, hydraulic bucking unit,fishing tools and workover tools.