Our factory is specialized by China Mechanical Group and China Geo-equipment Group in producing series of core drilling machine, series of anchor drilling machine, series of engineering drilling machine and directional drilling rig and hydraulic component
Lifting Subs are made from AISI4145H modified chromium-molybdenum alloy steel acc. to API Spec.7. All threads can be phosphated, copperised or cold worked.
Stabilizer is made from AISI4145H alloy steel acc. to API Spec.7. All threads are phosphated, copperized or cold worked.Main products: Replaceable Sleeve Stabilizer, Integral Blade Stabilizer, WZ Type Integral Blade Stabilizer, Three Roller Stabilizer.
Integral heavy weight drill pipe is made from AISI alloy steel acc. to API Spec.7 and SY/T5144.It is formed by hot forged and fully heat-treated. HWDP’ wear resistance hardbanding is standard on tool joints connections and central upset. The types of Hard
The non-magnetic drill collars are made of low carbon stainless steel and meet the requirement of API Spec.7 and SY/T5144. All threads are phosphated, copperized or cold worked. All connections are equipped with pressed steel thread protectors. All thread
The spiral drill collars are made of 4145H modified chromium-molybdenum alloy steel acc. to API Spec.7 and SY/t5144. All threads are phosphated, coppperized or cold worked. All threads are machined with CNC Lathes-Double-Shouldered and special threads. Th
The drill collars are made of 4145H modified chromium-molybdenum alloy steel acc. to API Spec.7 and SY/T5144. All threads can be phosphated, copperised or cold worked. All threads are machined with CNC Lathes-Double-Shouldered and special threads, the max
Main technical parameter:item LS YS structure Polyester, pre-burial framework compound structure polyester，pre-burial framework compound structure specification 150-1850×4500mm 150-1850×4500mm area 7.5m² 7.5 m² direction left style; right style lef
Place Of Origin: China
Supplier/Manufacturer: Zhengzhou Zhongding Heavy Duty Machine Manufacturing Co.,Ltd
