... Walking Ball, Roller, Boat etc. Features: Excellent Steel Frame Pool1) Dimensions:D6m to D38m2) Material: Best 0. ... is acceptable. As a carrier of water, steel frame pool developed earlier in Euro and USA. It ... radiation.2. The part of metal rod steel frame connects with slot maximum, which makes it a ... area is bigger than traditional pool. Moreover, its frame can stand big pressure and height up to ...