Hebei Jingbo Petroleum Machinery Co.,Ltd., founded in 1986, is committed to providing quality oilfield hoses worldwide. Jingbo has 30 years' experience in the oilfield hoses area and is the leading manufacturer of rotary drilling hose, choke & kill hose, BOP hose and hammer union. Jingbo is also the first grade supplier of CNPC, SINOPEC and CNOOC. As China's first API authorized manufacturer of oilfield hoses, Jingbo has got the certificates of API Spec 7K-0376, API Spec 16C-0374, API Spec 16D-0109, API Spec Q1-2085 and API ISO9001-2008.