... widely used in petroleum, chemical industry, metallurgy, ships, paper-making, electrical power, aerospace, pharmaceutical, water treatment, chemical fiber, urban construction, machinery ... of pipe elbows1, Products: 90 Deg. LR Elbow, 90 Deg. SR Elbows, 180 Deg. LR Elbow,180 Deg. SR Elbow, 45 Deg ... . LR Elbow, 45 Deg. SR Elbow 2, Thickness ...