Aea valve, special mechanical working of complete valve forgings: valve ball, seat ring, valve body, valve closure(bonnet, adapter, tailpiece, end piece), adapter flange(top flange, adapter plate, support flange), gland cap(packing gland, gland plate, seal gland ), trunnion(trunnion support, low trunnion, trunnion cover, lower cover), stem, vent valve, drain valve(seat injection, vent plug, drain plug).