… bars and rings; horizontal and parallel bars; balance beams, vaulting horses; pommel horses; spring boards; … and other water‑sport equipment, such as diving stages (platforms), chutes, divers’ flippers and respiratory masks …
… increase in length (e.g., in the rolling of ingots into blooms, billets or slabs; rolling of slabs into sheet, strip, etc.). (B) Rolling of blooms, billets, etc., to form a particular cross‑section …