Oil Casing Coupling
Product Details: Standard: API 5B Grade:J55 K55 N80 L80 P110 Outer Diameter: 4 1/2″~~20″ Thickness: according to API 5B Read More
Product Details: Standard: API 5B Grade:J55 K55 N80 L80 P110 Outer Diameter: 4 1/2″~~20″ Thickness: according to API 5B Read More