Ключевые слова: ball and socket joint, ball joint, bolt, cylinder, globe joint, glossy, grease, grease fitting, industry, instrument, lubrication nipple, mechanics, metal, metallic, mirroring, nut, perforated metal plate, perforated plate, perforated sheet, punched plate, punched sheet, reflective, screw, screw nut, spherical joint, swivel, swivel head, thread, tool, turned part, turning workpiece, universal joint, workpiece,