We are a professional manufacturer which produces the petroleum machinery such as sucker rod, drill collar, drill pipe Thickness1.24-60mmOut diameter10.3-1219.2mmLength6000-12000mmStandardAISI, ASTM, BS, DIN, GB, JISMaterialA25,A,B,X42,X46,X52,X56,X60,X65,X70,X80 H40 J55 K 55M65 N80 L 80 C 90 T 95 P110 Q125 CS-90 SCS-95 SCS-80 TCS-110TApplicationused for natural gas and petrolPaymentTT ,L/ ...