1. Core barrels are used to cut an annular ring in rock or concrete or reinforced concrete.

2. Cutting ring with roller bits and releases the internal stress of rock;

3.Drilling with the method of rolling and squeezing can increases the anti-wear ability of the barrel;

4.medium or slightly weathered rock, hard or superhard bedrock;

Our company founded in 2004, headquartered in Beijing, branch factory in Shouguang, Shandong. The company is mainly engaged in the production and sales of rotary piling kelly bars , drilling tools, rotary piling rig overhaul, rig sales and accessories supply.

Over the years we focus on research and development of the production of kelly bars, drill tools, with complete kelly bars fabriction and testing equipments, as well as we own professional research , design, sales and after-sales service team. Our company has a number of self-developed patented products, matched with domestic and abroad brands such as SANY, CRRC, XCMG, Bauer, Soilmec, IMT and other brand rigs , exported to Southeast Asia, the United States, Russia, the Middle East and other countries.

FAQ

1. Who are we?
   We are based in Beijing, China, start from 2009,sell to South Asia(30.00%),Domestic Market(20.00%),Southeast Asia(8.00%),South America(5.00%),Western Europe(5.00%),Mid East(5.00%),North America(5.00%),Central America(5.00%),Africa(5.00%),Oceania(5.00%),Eastern Asia(2.00%). There are total about 51-100 people in our office.
   
   2. How can we guarantee quality?
   Always a pre-production sample before mass production;
   Always final Inspection before shipment;
   
   3.What can you buy from us?
   Interlock Kelly Bar,friction kelly bar,drill bucket,casing,used bored piling rig
   
   4. Why should you buy from us not from other suppliers?
   Our company mainly produce the kelly bar,drill bucket, casing,used rig ,drill spare. we have the professional engineers and team, focusing on the manufacture of kelly bar, drill tools,casing series for 16 years, can satisfy different clients requirement.
   
   5. What services can we provide?
   Accepted Delivery Terms: FOB,CFR,CIF,EXW,CIP,DDP,DDU,Express Delivery,DAF,DES；
   Accepted Payment Currency:USD,EUR,JPY,CAD,AUD,HKD,CNY;
   Accepted Payment Type: T/T,L/C,D/P D/A,Credit Card,PayPal,Western Union,Cash,Escrow;
   Language Spoken:English,Chinese,Spanish,Japanese,Portuguese,German,Arabic,French,Russian,Korean,Hindi,Italian