Home
About us
Company Profile
Development History
Honor
Workshop
Products
High Wind Pressure Down The Hole Impactor
Down The Hole Bits
Customized Down The Hole Drill With High Wind Pressure
Casing System
Adapter And Drill Pipe
Reverse Circulation Product
Top Hammer Drill Bit
Construction & Piling Big Hole Drilling Product
Service
Innovate
Management Idea
Detection equipment
Service process
Return Policy
News
Exhibition in previous years
Company News
Industry news
Contact Us
+86-730-6808685
Drilling tool knowledge
Drilling String is the general name of the steel pipe string above the drill bit and below the faucet It includes square kelly, drill pipe, drill Collar, various joints, stabilizers and other downhole tools
05
2017
/
01
ADD:Pingjiang Industry Park, Pingjiang county,Yueyang City, Hunan, China.
TEL:+ 86-730-6808681
China Market:yang.riquan@xjgdrill.com
Fax:+86-730-6808681
copyright:Hunan New Diamond Construction Machinery Co.,Ltd. seo
BY:www.300.cn changsha