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

BS EN545 Ductile Iron Pipe FittingsDesign: BS EN545,EN598;ISO2531;BS4772Size: DN80-DN1600Pressure: PN10,PN16,PN25.

BS EN545 Ductile Iron Pipe FittingsDesign: BS EN545,EN598;ISO2531;BS4772Size: DN80-DN1600Pressure: PN10,PN16,PN25.

BS EN545 Ductile Iron Pipe FittingsDesign: BS EN545,EN598;ISO2531;BS4772Size: DN80-DN1600Pressure: PN10,PN16,PN25.

ANSI B16.9,ANSI B16.28,MSS SP-43 BUTT-WELDING FITTINGSDesign: ANSI B16.9;MSS SP-43Size: 1/2-48"Wall Thickness: SCH10-XXS

ANSI B16.11,BS3799 Forged FittingsDesign: ANSI B16.11,BS3799Size: 1/8"-4"Pressure: 2000psi,3000psi,6000psi,9000psi.

GROOVED COUPLINGS AND FITTINGSDesign: GB5135Size: 1"-12"Pressure: 230psi,300psi,360psi,500psiDesign :  GB5135.11-2006Roll Grooved Standard :  GB5135.11-2006;ANSI B36.10;ISO6182-12 Table 1;BS1387 etc.