An extremity is an appendage of the body which has been categorized into two parts; upper extremity and lower extremity. Upper extremity, also known as upper limb, includes the arm, forearm and hand. And lower extremity includes hips, knees and ankle joints and bones of thigh, leg, and foot. Extremity is made up of nerves, arteries, veins, ligaments, tendons and joints.
Extremity injuries can happen to anyone during sports, sudden falling or some other physical activities. Fractures, sprains, d 更多
Oil Country Tubular Goods (OCTG) comprises of a wide range of steel tubular products that are used in Oil and Gas exploration and production and in particular drilling. They can be Seamless and Welded Pipes (Electric Resistance Welding (EWR) and come in various sizes and length. The process of manufacturing of seamless and welded pipes and tubes is different with the seamless pipes designed to bear much higher stress. OCTG generally includes three categories of products - drill pipe, casing, and 更多