JTHL is a professioanl Kelly bar manufactory which founded in 2004 year, the main

workshop located in Daxing district, Beijing. The branch workshop located in Shouguang city, Shandong province, China. Which specialized in producing Kelly bar , Refurbished used drilling rig. Drilling rig spare parts, like gaerbox, motor, swivel joint, etc. 

The advantages of our Kelly bar ,such as low weight,high strength,high abrasion-resistance, highly-reliability are safeguarded technology by superior process, advanced machining equipments and special fixtures. Especially the patent technology bigeger lock Kelly bar is specially for strong hard rock layer, higher drilling working efficiency, more resistant to wear and tear.Normal standard dimension replacement spare parts as ready stock to ensure quickly delivery time.

Till now we have dozens of technical patents, ISO9001:2008 certifications, SGS. 35 production proprietary technologies . And we have dealer in Hunan province, middle agent in Singapore, UAE, Thailand. End customer in Colombia, Malaysia, Egypt, Vietnam, Pakistan, etc.

We sincerely to supply you with good quality and professional technology.

Our company is based on the ''Conduct myself faithfully,Concentrate on work'' as the principle, based on the spirit of "Customer-orientated" service attitude, and '' Honesty , Pioneering ,Innovative and Pragmatic'' as the business management philosophy. Aiming to imporve technology of piling rig kelly bars constantly. Continuously improve the localization work of piling rig maintenance and spares.Continuously imporve product quality. We strive to provide customer with the first-class management , advanced manufacturing technology, professional maintenance technology and after-sale service , and hope to be best cooperation partner with all the rotary piling rig customers.